000 00299nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a515
082 _b35 K85
100 _aKrasnov.M.L.
245 2 _aA Book Of Problems
260 _aMoscow
260 _bMIR
260 _c1978
300 _a331
999 _c25632
_d25632