Author

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Lyubomir Penev
Pensoft Publishers & Bulgarian Academy of Sciences, Sofia, Bulgaria
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10 articles by this author

Guidelines
    doi: 10.3897/rio.3.e12431
 28-02-2017
 Unique: 453  |  Total: 753
Research Presentation
    doi: 10.3897/rio.3.e12265
 15-02-2017
 Unique: 164  |  Total: 261
Research Presentation
    doi: 10.3897/rio.2.e10617
 23-09-2016
 Unique: 407  |  Total: 663
Project Report
Updated version 2     doi: 10.3897/rio.2.e10445
 12-09-2016
 Unique: 369  |  Total: 625
Policy Brief
    doi: 10.3897/rio.2.e9933
 20-07-2016
 Unique: 893  |  Total: 1504
Project Report
    doi: 10.3897/rio.2.e9774
 06-07-2016
 Unique: 669  |  Total: 1219
Project Report
    doi: 10.3897/rio.2.e9390
 31-05-2016
 Unique: 1432  |  Total: 2449
Project Report
    doi: 10.3897/rio.2.e8458
 12-03-2016
 Unique: 1055  |  Total: 1826
PhD Project Plan
    doi: 10.3897/rio.2.e7757
 11-01-2016
 Unique: 1642  |  Total: 3001
Editorial
    doi: 10.3897/rio.1.e7547
 17-12-2015
 Unique: 2454  |  Total: 3917