,  
(1891-1977).
. . , , ,   . . -. .  -,    1916 . . .

 .      . "   " -   "  " (1939);   1960-70 .     - "     " (1963), "  " (1964), "  " (1968), " " (1970), "  " (1975).    .,   .  . -,  .  ""     . . ;   ,     (),  .      ,      " . "    (      . ).  . "  " (1960),    (. ),      -    (.  ),         (.   ).  " "  . - "     " (1963) (.   ). .     ( , . .).

..