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: 1955  |  Total: 3594
 233-246
 27-04-2015
 Unique: 1588  |  Total: 2902
 1-8
 03-09-2013
 Unique: 4231  |  Total: 5449
 1-3
 18-12-2012
 Unique: 4734  |  Total: 6749
 1-10
 04-07-2012
 Unique: 5953  |  Total: 7583
 1-3
 28-11-2011
 Unique: 28148  |  Total: 32131
 127-149
 28-11-2011
 Unique: 8097  |  Total: 10235
 89-116
 28-11-2011
 Unique: 5888  |  Total: 7671
 5-14
 28-11-2011
 Unique: 6677  |  Total: 8206
 1-3
 28-11-2011
 Unique: 7064  |  Total: 9270
 211-229
 14-04-2011
 Unique: 11708  |  Total: 14021
 1-12
 30-06-2010
 Unique: 11981  |  Total: 15704
 1-16