:

  •  
                                                          

    " " (Bethlehem Steel)

    " " (Bethlehem Steel)

    . 1904. , . 5,5 . ., 403 . ., 11,7 . , 32,9 . (. 1980- .).


    ( . vector - )
    () (Weigel) (1900-1971)
    ()
    (1842-1905)
    :