Erdoel Erdgas Kohle/EKEP

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Energy Engineering and Power Technology	1999	Q1
Energy Engineering and Power Technology	2000	Q2
Energy Engineering and Power Technology	2001	Q2
Energy Engineering and Power Technology	2002	Q2
Energy Engineering and Power Technology	2003	Q3
Energy Engineering and Power Technology	2004	Q2
Energy Engineering and Power Technology	2005	Q2
Energy Engineering and Power Technology	2006	Q2
Energy Engineering and Power Technology	2007	Q2
Energy Engineering and Power Technology	2008	Q3
Energy Engineering and Power Technology	2009	Q3
Energy Engineering and Power Technology	2010	Q3
Energy Engineering and Power Technology	2011	Q3
Energy Engineering and Power Technology	2012	Q3
Energy Engineering and Power Technology	2013	Q3
Energy Engineering and Power Technology	2014	Q3
Fuel Technology	1999	Q2
Fuel Technology	2000	Q2
Fuel Technology	2001	Q2
Fuel Technology	2002	Q2
Fuel Technology	2003	Q2
Fuel Technology	2004	Q2
Fuel Technology	2005	Q2
Fuel Technology	2006	Q2
Fuel Technology	2007	Q2
Fuel Technology	2008	Q3
Fuel Technology	2009	Q3
Fuel Technology	2010	Q3
Fuel Technology	2011	Q3
Fuel Technology	2012	Q3
Fuel Technology	2013	Q3
Fuel Technology	2014	Q3
Geotechnical Engineering and Engineering Geology	1999	Q1
Geotechnical Engineering and Engineering Geology	2000	Q2
Geotechnical Engineering and Engineering Geology	2001	Q2
Geotechnical Engineering and Engineering Geology	2002	Q2
Geotechnical Engineering and Engineering Geology	2003	Q3
Geotechnical Engineering and Engineering Geology	2004	Q2
Geotechnical Engineering and Engineering Geology	2005	Q2
Geotechnical Engineering and Engineering Geology	2006	Q2
Geotechnical Engineering and Engineering Geology	2007	Q2
Geotechnical Engineering and Engineering Geology	2008	Q3
Geotechnical Engineering and Engineering Geology	2009	Q4
Geotechnical Engineering and Engineering Geology	2010	Q3
Geotechnical Engineering and Engineering Geology	2011	Q3
Geotechnical Engineering and Engineering Geology	2012	Q4
Geotechnical Engineering and Engineering Geology	2013	Q3
Geotechnical Engineering and Engineering Geology	2014	Q3

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.361
2000	0.213
2001	0.222
2002	0.168
2003	0.131
2004	0.196
2005	0.146
2006	0.198
2007	0.224
2008	0.161
2009	0.106
2010	0.168
2011	0.153
2012	0.125
2013	0.179
2014	0.135

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	93
2000	238
2001	226
2002	196
2003	76
2004	86
2005	102
2006	83
2007	77
2008	58
2009	15
2010	32
2011	11
2012	0
2013	0
2014	0

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.207
Cites / Doc. (4 years)	2000	0.185
Cites / Doc. (4 years)	2001	0.114
Cites / Doc. (4 years)	2002	0.066
Cites / Doc. (4 years)	2003	0.065
Cites / Doc. (4 years)	2004	0.052
Cites / Doc. (4 years)	2005	0.058
Cites / Doc. (4 years)	2006	0.065
Cites / Doc. (4 years)	2007	0.101
Cites / Doc. (4 years)	2008	0.069
Cites / Doc. (4 years)	2009	0.059
Cites / Doc. (4 years)	2010	0.086
Cites / Doc. (4 years)	2011	0.093
Cites / Doc. (4 years)	2012	0.103
Cites / Doc. (4 years)	2013	0.259
Cites / Doc. (4 years)	2014	0.209
Cites / Doc. (3 years)	1999	0.207
Cites / Doc. (3 years)	2000	0.179
Cites / Doc. (3 years)	2001	0.096
Cites / Doc. (3 years)	2002	0.061
Cites / Doc. (3 years)	2003	0.059
Cites / Doc. (3 years)	2004	0.058
Cites / Doc. (3 years)	2005	0.075
Cites / Doc. (3 years)	2006	0.095
Cites / Doc. (3 years)	2007	0.118
Cites / Doc. (3 years)	2008	0.069
Cites / Doc. (3 years)	2009	0.073
Cites / Doc. (3 years)	2010	0.107
Cites / Doc. (3 years)	2011	0.133
Cites / Doc. (3 years)	2012	0.190
Cites / Doc. (3 years)	2013	0.326
Cites / Doc. (3 years)	2014	0.273
Cites / Doc. (2 years)	1999	0.216
Cites / Doc. (2 years)	2000	0.140
Cites / Doc. (2 years)	2001	0.073
Cites / Doc. (2 years)	2002	0.058
Cites / Doc. (2 years)	2003	0.066
Cites / Doc. (2 years)	2004	0.055
Cites / Doc. (2 years)	2005	0.068
Cites / Doc. (2 years)	2006	0.096
Cites / Doc. (2 years)	2007	0.092
Cites / Doc. (2 years)	2008	0.044
Cites / Doc. (2 years)	2009	0.074
Cites / Doc. (2 years)	2010	0.164
Cites / Doc. (2 years)	2011	0.255
Cites / Doc. (2 years)	2012	0.163
Cites / Doc. (2 years)	2013	0.182
Cites / Doc. (2 years)	2014	0.000

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	8
Self Cites	2000	4
Self Cites	2001	4
Self Cites	2002	5
Self Cites	2003	11
Self Cites	2004	8
Self Cites	2005	2
Self Cites	2006	7
Self Cites	2007	10
Self Cites	2008	1
Self Cites	2009	1
Self Cites	2010	0
Self Cites	2011	1
Self Cites	2012	0
Self Cites	2013	0
Self Cites	2014	0
Total Cites	1999	39
Total Cites	2000	39
Total Cites	2001	38
Total Cites	2002	34
Total Cites	2003	39
Total Cites	2004	29
Total Cites	2005	27
Total Cites	2006	25
Total Cites	2007	32
Total Cites	2008	18
Total Cites	2009	16
Total Cites	2010	16
Total Cites	2011	14
Total Cites	2012	11
Total Cites	2013	14
Total Cites	2014	3

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.165
External Cites per document	2000	0.161
External Cites per document	2001	0.086
External Cites per document	2002	0.052
External Cites per document	2003	0.042
External Cites per document	2004	0.042
External Cites per document	2005	0.070
External Cites per document	2006	0.068
External Cites per document	2007	0.081
External Cites per document	2008	0.065
External Cites per document	2009	0.069
External Cites per document	2010	0.107
External Cites per document	2011	0.124
External Cites per document	2012	0.190
External Cites per document	2013	0.326
External Cites per document	2014	0.273
Cites per document	1999	0.207
Cites per document	2000	0.179
Cites per document	2001	0.096
Cites per document	2002	0.061
Cites per document	2003	0.059
Cites per document	2004	0.058
Cites per document	2005	0.075
Cites per document	2006	0.095
Cites per document	2007	0.118
Cites per document	2008	0.069
Cites per document	2009	0.073
Cites per document	2010	0.107
Cites per document	2011	0.133
Cites per document	2012	0.190
Cites per document	2013	0.326
Cites per document	2014	0.273

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	4.30
2000	2.10
2001	0.00
2002	0.51
2003	7.89
2004	8.14
2005	14.71
2006	9.64
2007	6.49
2008	10.34
2009	13.33
2010	0.00
2011	0.00
2012	0
2013	0
2014	0

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	40
Non-citable documents	2001	129
Non-citable documents	2002	234
Non-citable documents	2003	242
Non-citable documents	2004	165
Non-citable documents	2005	63
Non-citable documents	2006	30
Non-citable documents	2007	19
Non-citable documents	2008	16
Non-citable documents	2009	2
Non-citable documents	2010	2
Non-citable documents	2011	9
Non-citable documents	2012	8
Non-citable documents	2013	7
Non-citable documents	2014	0
Citable documents	1999	188
Citable documents	2000	178
Citable documents	2001	266
Citable documents	2002	323
Citable documents	2003	418
Citable documents	2004	333
Citable documents	2005	295
Citable documents	2006	234
Citable documents	2007	252
Citable documents	2008	246
Citable documents	2009	216
Citable documents	2010	148
Citable documents	2011	96
Citable documents	2012	50
Citable documents	2013	36
Citable documents	2014	11

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	157
Uncited documents	2000	192
Uncited documents	2001	365
Uncited documents	2002	538
Uncited documents	2003	634
Uncited documents	2004	478
Uncited documents	2005	339
Uncited documents	2006	251
Uncited documents	2007	248
Uncited documents	2008	248
Uncited documents	2009	205
Uncited documents	2010	137
Uncited documents	2011	94
Uncited documents	2012	49
Uncited documents	2013	39
Uncited documents	2014	9
Cited documents	1999	31
Cited documents	2000	26
Cited documents	2001	30
Cited documents	2002	19
Cited documents	2003	26
Cited documents	2004	20
Cited documents	2005	19
Cited documents	2006	13
Cited documents	2007	23
Cited documents	2008	14
Cited documents	2009	13
Cited documents	2010	13
Cited documents	2011	11
Cited documents	2012	9
Cited documents	2013	4
Cited documents	2014	2

% Female Authors

Evolution of the percentage of female authors.

Year	Female Percent
1999	21.05
2000	8.00
2001	5.26
2002	4.71
2003	9.21
2004	9.09
2005	9.47
2006	16.46
2007	5.80
2008	7.69
2009	18.52
2010	11.86
2011	22.22
2012	0.00
2013	0.00
2014	0.00

Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

Documents	Year	Value
Overton	1999	0
Overton	2000	0
Overton	2001	0
Overton	2002	0
Overton	2003	0
Overton	2004	0
Overton	2005	0
Overton	2006	0
Overton	2007	0
Overton	2008	0
Overton	2009	0
Overton	2010	0
Overton	2011	0
Overton	2012	0
Overton	2013	0
Overton	2014	0