He died in early July 2013 after a serious illness (Alzheimer's and Parkinson's). He was buried on July 11, 2013.[5]
References
^Hall, Rex; David Shaler; Bert Vis (2005). Russia's cosmonauts: inside the Yuri Gagarin Training Center. Springer-Praxis books in space exploration. Birkhäuser. p. 211. ISBN978-0-387-21894-6.
^Hooper, Gordon R. (1986). The Soviet cosmonaut team: a comprehensive guide to the men and women of the Soviet manned space programme. GRH Publications. pp. 53, 65, 237. ISBN978-0-9511312-0-6.