Template:Abramowitz Stegun ref
Abramowitz, Milton; Stegun, Irene Ann (编). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. Applied Mathematics Series 55 Ninth reprint with additional corrections of tenth original printing with corrections (December 1972); first. Washington D.C.; New York: United States Department of Commerce, National Bureau of Standards; Dover Publications. 1983. ISBN 978-0-486-61272-0. LCCN 64-60036. MR 0167642. .