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: 2080  |  Total: 3914
 233-246
 27-04-2015
 Unique: 1667  |  Total: 3025
 1-8
 03-09-2013
 Unique: 4306  |  Total: 5572
 1-3
 18-12-2012
 Unique: 4846  |  Total: 6982
 1-10
 04-07-2012
 Unique: 6043  |  Total: 7778
 1-3
 28-11-2011
 Unique: 6740  |  Total: 8313
 1-3
 28-11-2011
 Unique: 5967  |  Total: 7823
 5-14
 28-11-2011
 Unique: 7185  |  Total: 9471
 211-229
 28-11-2011
 Unique: 8226  |  Total: 10518
 89-116
 28-11-2011
 Unique: 28280  |  Total: 32366
 127-149
 14-04-2011
 Unique: 11817  |  Total: 14214
 1-12
 30-06-2010
 Unique: 12076  |  Total: 15892
 1-16