Asymptotic expansions
A. Erdélyi.
New York : Dover, 1956.
vi, 108 págs. ; 21 cm.
ISBN: 0486603180
"An unabridged and unaltered republication of Technical report 3, prepared under contract Nonr-220 (11) for the Office of Naval Research reference No. NR 043-121."
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Reseña: MathSciNet, 17,1202c