000 00475nam a2200169 a 4500
008 170703s1965####ne ||||f#|||||00| 0#uuu#d
003 AR-SmCIES
080 _a02 (5)
091 _a12811
100 1 _aFröman, Nanny
245 1 0 _aJWKB approximation. Contributions to the theory.
260 _aAmsterdam :
_bNorth-Holland,
_c1965.
300 _a138 p.
700 1 _aFröman, P. O.
999 _c21613
_d21613