Annals of Combinatorics

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
Discrete Mathematics and Combinatorics	2006	Q3
Discrete Mathematics and Combinatorics	2007	Q3
Discrete Mathematics and Combinatorics	2008	Q3
Discrete Mathematics and Combinatorics	2009	Q2
Discrete Mathematics and Combinatorics	2010	Q2
Discrete Mathematics and Combinatorics	2011	Q3
Discrete Mathematics and Combinatorics	2012	Q3
Discrete Mathematics and Combinatorics	2013	Q3
Discrete Mathematics and Combinatorics	2014	Q2
Discrete Mathematics and Combinatorics	2015	Q2
Discrete Mathematics and Combinatorics	2016	Q2

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
2006	0.425
2007	0.612
2008	0.535
2009	1.015
2010	0.688
2011	0.581
2012	0.379
2013	0.580
2014	0.743
2015	0.843
2016	0.606

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)	2006	0.744
Cites / Doc. (4 years)	2007	1.027
Cites / Doc. (4 years)	2008	0.774
Cites / Doc. (4 years)	2009	0.680
Cites / Doc. (4 years)	2010	0.543
Cites / Doc. (4 years)	2011	0.600
Cites / Doc. (4 years)	2012	0.478
Cites / Doc. (4 years)	2013	0.488
Cites / Doc. (4 years)	2014	0.633
Cites / Doc. (4 years)	2015	0.479
Cites / Doc. (4 years)	2016	0.575
Cites / Doc. (3 years)	2006	0.744
Cites / Doc. (3 years)	2007	1.027
Cites / Doc. (3 years)	2008	0.774
Cites / Doc. (3 years)	2009	0.588
Cites / Doc. (3 years)	2010	0.583
Cites / Doc. (3 years)	2011	0.532
Cites / Doc. (3 years)	2012	0.438
Cites / Doc. (3 years)	2013	0.457
Cites / Doc. (3 years)	2014	0.594
Cites / Doc. (3 years)	2015	0.442
Cites / Doc. (3 years)	2016	0.538
Cites / Doc. (2 years)	2006	0.744
Cites / Doc. (2 years)	2007	1.027
Cites / Doc. (2 years)	2008	0.540
Cites / Doc. (2 years)	2009	0.642
Cites / Doc. (2 years)	2010	0.566
Cites / Doc. (2 years)	2011	0.472
Cites / Doc. (2 years)	2012	0.407
Cites / Doc. (2 years)	2013	0.523
Cites / Doc. (2 years)	2014	0.568
Cites / Doc. (2 years)	2015	0.395
Cites / Doc. (2 years)	2016	0.544

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	2006	3
Self Cites	2007	1
Self Cites	2008	3
Self Cites	2009	5
Self Cites	2010	6
Self Cites	2011	3
Self Cites	2012	1
Self Cites	2013	1
Self Cites	2014	4
Self Cites	2015	1
Self Cites	2016	6
Total Cites	2006	32
Total Cites	2007	77
Total Cites	2008	82
Total Cites	2009	50
Total Cites	2010	49
Total Cites	2011	50
Total Cites	2012	49
Total Cites	2013	59
Total Cites	2014	76
Total Cites	2015	57
Total Cites	2016	64

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	2006	0.674
External Cites per document	2007	1.013
External Cites per document	2008	0.745
External Cites per document	2009	0.529
External Cites per document	2010	0.512
External Cites per document	2011	0.500
External Cites per document	2012	0.429
External Cites per document	2013	0.450
External Cites per document	2014	0.563
External Cites per document	2015	0.434
External Cites per document	2016	0.487
Cites per document	2006	0.744
Cites per document	2007	1.027
Cites per document	2008	0.774
Cites per document	2009	0.588
Cites per document	2010	0.583
Cites per document	2011	0.532
Cites per document	2012	0.438
Cites per document	2013	0.457
Cites per document	2014	0.594
Cites per document	2015	0.442
Cites per document	2016	0.538

% 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
2006	36.36
2007	29.03
2008	30.43
2009	38.71
2010	14.29
2011	32.50
2012	20.83
2013	25.00
2014	26.83
2015	35.90
2016	30.00

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	2006	0
Non-citable documents	2007	1
Non-citable documents	2008	1
Non-citable documents	2009	2
Non-citable documents	2010	1
Non-citable documents	2011	2
Non-citable documents	2012	1
Non-citable documents	2013	1
Non-citable documents	2014	0
Non-citable documents	2015	0
Non-citable documents	2016	1
Citable documents	2006	43
Citable documents	2007	75
Citable documents	2008	106
Citable documents	2009	85
Citable documents	2010	84
Citable documents	2011	94
Citable documents	2012	112
Citable documents	2013	129
Citable documents	2014	128
Citable documents	2015	129
Citable documents	2016	119

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	2006	30
Uncited documents	2007	48
Uncited documents	2008	69
Uncited documents	2009	47
Uncited documents	2010	53
Uncited documents	2011	66
Uncited documents	2012	83
Uncited documents	2013	85
Uncited documents	2014	81
Uncited documents	2015	93
Uncited documents	2016	80
Cited documents	2006	13
Cited documents	2007	28
Cited documents	2008	38
Cited documents	2009	40
Cited documents	2010	32
Cited documents	2011	30
Cited documents	2012	30
Cited documents	2013	45
Cited documents	2014	47
Cited documents	2015	36
Cited documents	2016	40

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Country	Germany	16 H Index
Subject Area and Category	Mathematics Discrete Mathematics and Combinatorics
Publisher	Springer Verlag
Publication type	Journals
ISSN	02180006
Coverage	2005-ongoing
Scope	Annals of Combinatorics (AC) will publish outstanding contributions to combinatorial mathematics in all its respects. Special regard will be given to new developments which have yet to be given proper recognition, but which in the opinion of the editors show promise of eventual mathematical breakthroughs. Papers published in Annals of Combinatorics will not be limited to the field of combinatorics in the strict sense. They will range over problems and theories that have arisen, or will arise, in applications to computer science, biology, statistics, probability, physics and chemistry, as well as over work of a combinatorial nature in representation theory, number theory topology, algebraic geometry and the theory of special functions. (source)