Качайло, К. А. “The Features of Word-Formation Structure of the Names of Birds of the Begining of a 20 Centurу”. Philological Studies: The Scientific Publication of Kryvyi Rih State Pedagogical University, vol. 6, no. 1, Oct. 2011, pp. 239-48, doi:10.31812/filstd.v6i1.800.