ISBN 9783540170082 books & textbook
Analysis I: Integral Representations and Asymptotic Methods (Encyclopaedia of Mathematical Sciences)
Gamkrelidze, R.V. Newton, David Evgrafov, M.A. Fedoryuk, M.V.
Springer /1989-08-25 Hardcover / 238 Pages
isbn-10: 3540170081 / isbn-13: 9783540170082