(3GdeQUaGhj aj bGfhf GdcSH ZjQ GdeTQhY (B: s (3LQjeI GdcSH ZjQ GdeTQhY(B-(3GdaMU hGdJMbjb(B-(3GdYbhHGJ (B/ s - (3GdeQUaGhj, MSf UGOb s ((3GdEScfOQjI, eUQ (B: s (3efTCI GdeYGQa, s, 1900)
Keywords: (3LQGFe GdCehGds -- (3eUQ s; (3GdcSH ZjQ GdeTQhY s -- (3bhGfjf hJTQjYGJ s -- (3eUQ s