1. 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». 2014. № 1004. C. 91-97.