Dennis Newkirk: Almanac of Soviet Manned Space Flight. 7. März 2008, abgerufen am 28. April 2009 (englisch): „The original commander for this mission was Yuri Malyshev. During training for the flight, the Soviet's said that a heart irregularity was detected which grounded Malyshev from spaceflight. Dzhanibekov was assigned as replacement commander of the flight.“