( ; ) (1897, , - 1963, ), . . . . " " (1921) . 20- . . . . 10 : " " (1921), " "(1931) . "" (""), - " ". - ( .) . 40-50. - " " (1952), " " (1954), " " (1956), ", " (1956), .

.: , .3, , 1959.

.: ո, , , 1961.

: