GOLOLOBOVA, E. A. Ecological State Of Environmental Components Of Natural Reserve Fund Of The Kharkiv Region (For Example, Nature Reserves «Ryazanov Balka», «Kochetoksky», «Tsikalove»). Visnyk of V. N. Karazin Kharkiv National University series «Еcоlogy», n. 1004, p. 91-97, 17 Mar. 2014.