00854nam a22002531 4500 6302 BD-RjUL 20211208234224.0 140109s1965 ne a b 001 0 eng (BD-RjUL)6342 DLC/ICU ICU BD-RjUL eng eng 20 530.12 FRJ 1965 Fröman, Nanny. 19832 JWKB approximation : contributions to the theory / Nanny Fröman, Per Olof Fröman. Amsterdam, North-Holland Pub. Co.; [sole distributors for U.S.A.: Interscience Publishers, New York] 1965. viii, 138 p. : illus. ; 23 cm. Includes bibliography and index. Perturbation (Quantum dynamics) 19833 Fröman, Per Olof joint author 19834 ddc BK 6302 6302 0 0 ddc 0 1 NFIC RUCL RUCL reading 2068-10-22 Book View 32.00 0 530.12 FRJ 1965 2014-01-09 00:00:00 C-1 2021-12-08 BK