For citations:

Martynov V.L. V. A. Shirokova, V. A. Snytko, V. M. Chesnov, N. L. Frolova, V. A. Nizovtsev, N. G. Dmitruk, R. S. Shirokov. Hydrological system of Vyshny Volochek: retrospect and present day. Hydrological and ecological state and changes of landscape in the waterway region. Expeditionary studies: state, results, prospects. Moscow: OOO «IPP Kuna», 2011. 316 p. Proceedings of the Russian Geographical Society. 2012;144(4):81-84. (In Russ.)