Penev L.

 Eine neue Art der Gattung Adrastus Esch. aus Bulgarien (Coleoptera, Elateridae). (1983)
Reichenbachia, 21 (30): 181-184.

 A new species of the genus Haterumelater (Coleoptera, Elateridae) from Bulgaria. (1987)
Zool. journal, 66 (10): 1586-1589.

 Description of larva and distribution of Prosternon chrysocomum (Coleoptera, Elateridae). (1988)
Zool. journal, 67 (11): 1746-1748.

 Fauna and zonal distribution of click beetles (Coleoptera, Elatridae) of the Russian plane. (1989)
Zool. journal, 68 (2): 193-205.

 The Click-Beetles of North Ossetia, Caucasus: Fauna, Habitat Distribution, and Biogeography (Coleoptera: Elateridae). (1996)
Stuttgarten Beiträge zur Naturkunde, Ser.A, 548: 1-19.

 Description of the larva of Athous monilicornis (Coleoptera, Elateridae) with notes on the species distribution. (2005)
Vestnik zoologii 39 (1): 55-58.