Author

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Lyubomir Penev
Pensoft Publishers & Bulgarian Academy of Sciences, Sofia, Bulgaria
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19 articles by this author

 07-01-2016
 Unique: 1499  |  Total: 2775
 233-246
 27-04-2015
 Unique: 1336  |  Total: 2411
 1-8
 03-09-2013
 Unique: 3969  |  Total: 4895
 1-3
 18-12-2012
 Unique: 4336  |  Total: 5829
 1-10
 04-07-2012
 Unique: 5610  |  Total: 6814
 1-3
 28-11-2011
 Unique: 27556  |  Total: 30682
 127-149
 28-11-2011
 Unique: 7680  |  Total: 9350
 89-116
 28-11-2011
 Unique: 5524  |  Total: 6985
 5-14
 28-11-2011
 Unique: 6387  |  Total: 7615
 1-3
 28-11-2011
 Unique: 6713  |  Total: 8497
 211-229
 14-04-2011
 Unique: 11269  |  Total: 13069
 1-12
 30-06-2010
 Unique: 11584  |  Total: 14870
 1-16