Автор Афанасьев В. Описание Afanasyev , AT. The probable path of Prince Igor Seversky to Polovtsy in 1185: A critical study of the campaign on the chronicles and the "Lay of Igor's Regiment." - M.: B. and., 1939. - P. 45-56 . 1. Power (collection). 2. Igor Seversky campaign - 1185. BBC 63.3 (2) 411-68 E-copy source: PB Location on the original: ГПИБ Издательство б. и. Объект в каталогах Русь (Киевская Русь) в IX