@BOOK{ Book!D - 91087480,
AUTHOR = "Makarets, M. V.",
TITLE = "Ordinary differential equations and calculus of variations : book of problems",
LIBRARY= "کتابخانه مرکزی و مرکز اطلاع رسانی دانشگاه حکیم سبزواری",
SUBJECT = "Problems, exercises, etc ، Differential equations,Problems, exercises, etc ، Calculus of variations",
URL = "/book/91087480/Ordinary-differential-equations-and-calculus-of-va/"}