000 00262nam a2200109Ia 4500
008 221001s1973 xx 000 0 eng d
082 _a515 PRO
245 0 _aProblems in mathematical analysis
260 _aMoscow
_bMIR
_c1973
300 _a496p.
942 _2ddc
_cBK
999 _c18900
_d18900