TY  - DATA
AU  - Nanny Fröman, Per O. Fröman
TI  - Phase-Integral Method
SN  - 9781461223429
PY  - 1996///
PB  - Springer New York
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-1-4612-2342-9
ER  -