000 00517 a2200169 4500
020 _a079235625x
035 _a
084 _247B25 (47A55 47N50 81Q05 81Q15 81T10)
090 _c2117
_d2117
100 _aKoshmanen, Volodymyr
245 _aSingular quadratic forms in perturbation theory
_c Volodymyr Koshmanen
260 _aDordrecht, Boston
_bKluwer Academic Publishers
_c1999
300 _aVIII, 308 p
_c24 cm
440 _aMathematics and its application
_v474
500 _aContine bibliogr
942 _aIMAR
_cCART
999 _c2009
_d2009