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: 1248  |  Total: 2368
 233-246
 27-04-2015
 Unique: 1145  |  Total: 2092
 1-8
 03-09-2013
 Unique: 3747  |  Total: 4493
 1-3
 18-12-2012
 Unique: 4112  |  Total: 5383
 1-10
 04-07-2012
 Unique: 5400  |  Total: 6428
 1-3
 28-11-2011
 Unique: 6487  |  Total: 8071
 211-229
 28-11-2011
 Unique: 27158  |  Total: 29661
 127-149
 28-11-2011
 Unique: 5276  |  Total: 6522
 5-14
 28-11-2011
 Unique: 7437  |  Total: 8862
 89-116
 28-11-2011
 Unique: 6187  |  Total: 7218
 1-3
 14-04-2011
 Unique: 11015  |  Total: 12449
 1-12
 30-06-2010
 Unique: 11281  |  Total: 13685
 1-16