Author

Profile picture
Lyubomir Penev
Pensoft Publishers & Bulgarian Academy of Sciences, Sofia, Bulgaria
More articles in:  CrossRef  |  PubMed  |  Google Scholar

3 articles by this author

 13-04-2016
 Unique: 1454  |  Total: 2192
 1-5
 26-03-2014
 Unique: 5298  |  Total: 8161
 49-65
 14-03-2012
 Unique: 12739  |  Total: 16377
 1-10