| Auteur(s) | Dugina, Y. N. |
| Jaar | 2009 |
| Titel | Bee fauna (Hymenoptera, Apoidea) of steppe territories with different level of protection Belgorod State University Scientific bulletin. Natural sciences 3(58): 75-80. |
| Auteur(s) | Dugina, Y. N. |
| Jaar | 2009 |
| Titel | Bee fauna (Hymenoptera, Apoidea) of steppe territories with different level of protection Belgorod State University Scientific bulletin. Natural sciences 3(58): 75-80. |