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: 2019  |  Total: 3698
 233-246
 27-04-2015
 Unique: 1634  |  Total: 2969
 1-8
 03-09-2013
 Unique: 4280  |  Total: 5528
 1-3
 18-12-2012
 Unique: 4802  |  Total: 6883
 1-10
 04-07-2012
 Unique: 6009  |  Total: 7696
 1-3
 28-11-2011
 Unique: 7135  |  Total: 9385
 211-229
 28-11-2011
 Unique: 28212  |  Total: 32248
 127-149
 28-11-2011
 Unique: 8197  |  Total: 10447
 89-116
 28-11-2011
 Unique: 6709  |  Total: 8265
 1-3
 28-11-2011
 Unique: 5940  |  Total: 7762
 5-14
 14-04-2011
 Unique: 11768  |  Total: 14138
 1-12
 30-06-2010
 Unique: 11382  |  Total: 14737
 17-28