000 00458nam a2200181Ia 4500
005 20250805130049.0
008 250805s2013||||xx |||||||||||||| ||und||
020 _a9780486497426
082 _a515.364 HEA
100 _aHeading John
245 0 _aIntroduction to Phase Integral Methods
260 _bDover Publications
_aNew York
_c2013
300 _a160
650 _a heading john
650 _aphase integral
690 _aMathematics
942 _cBK
999 _c82381
_d82381