cover (pdf)Ilkova J. & Dimitrova D. – Effect of Cadmium on Salivary Gland Polytene Chromosomes of Chironomus riparius Meigen, 1804 (Diptera: Chironomidae) – .PDF
Uchmański J., Chajczuk K. & Opaliński K.W. – Resource Partitioning among Competing Individuals: an Experiment with Bean Weevil Acanthoscelides obtectus (Say, 1831) (Coleoptera: Chrysomelidae) – .PDF
Mitrevichin E., Peshev H., Stoynov E., Grozdanov A., Sakelarieva L. & Pulev A. – Biological and Ecological Characteristics of Testudo hermanni Gmelin, 1789 and T. graeca Linnaeus, 1758 (Testudines: Testudinidae) in the Northwestern Foothills of the Pirin Mountains, Bulgaria – .PDF
Tyufekchieva V., Vidinova Y., Evtimova V., Varadinova E. & Botev I. – Ephemeroptera, Plecoptera and Trichoptera (Insecta) of Mountain Tributaries of the Struma River: Diversity in Relation to Environmental Parameters and Zoogeographic Features – .PDF
Varadinova E., Georgieva G., Ihtimanska M., Vidinova Y., Evtimova V., Tyufekchieva V. & Todorov M. – Macrozoobenthos in Mountain Standing Water Bodies in Bulgaria – .PDF
Park J., Sakelarieva L., Varadinova E., Evtimova V., Vidinova Y., Tyufekchieva V., Georgieva G.,
Ihtimanska M. & Todorov M. – Taxonomic Composition and Dominant Structure of the Macrozoobenthos in the Maritsa River and Some Tributaries, South Bulgaria – .PDF
Vidinova Y., Tyufekchieva V., Ihtimanska M., Evtimova V., Varadinova E., Todorov M. & Georgieva G. – Benthic Macroinvertebrate Assemblages in Karst Springs Ecosystems in Bulgaria – .PDF