000 | 00374nam a2200145Ia 4500 | ||
---|---|---|---|
008 | 200906s9999 xx 000 0 und d | ||
082 | _a517.382 L4954 | ||
100 | _aLEFSCHETZ.S | ||
245 | 0 | _aCONTRIBUTIONS TO THE THEORY OF NON-LINEAR OSCILLATIONS | |
250 | _a4 | ||
260 |
_bPRINCETON _c1958 |
||
300 | _a25X18 | ||
440 | _aANNALS OF MATHEMATICS STUDIES | ||
942 | _cBK | ||
999 |
_c61063 _d61063 |