sentence1: Viktor Aronovich Bely , also Viktor Arkadyevich Bely ( 14 January 1904 - 6 March 1983 ) , was a Russian composer and social activist .
sentence2: Viktor Arkadyevich Bely , also Viktor Aronovich Bely ( ; 14 January 1904 -- 6 March 1983 ) , was a Russian composer and social activist .