@BOOK{ Book!D - 93577907, AUTHOR = "/ Gerhard Kristensson", TITLE = "Second order differential equations", LIBRARY= "کتابخانه مرکزی، مرکز اسناد و تامین منابع علمی دانشگاه صنعتی سهند", SUBJECT = "Hypergeometric functions,Differential equations, Partial, Numerical solutions", URL = "/book/93577907/Second-order-differential-equations/"}