000 00495nam a2200181Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a510T
_bAm512(86)
100 _aMergelyan S N
245 _aOn a theorem of L A Lavrent'ev
260 _aProvidence
_bAMS
_c1953
300 _a7p
440 _aAmerican Mathematical Society: Translation; No 86
500 _aTr from Doklady Akademi Nauk SSSR (N.S)
650 _aMathematics
942 _cBK
999 _c30542
_d30542