@BOOK{ Book!D - 92852752,
AUTHOR = "/ Naveen Kumar",
TITLE = "An elementary course on variational problems in calculus",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه مازندران",
SUBJECT = "Calculus of variations",
URL = "/book/92852752/An-elementary-course-on-variational-problems-in-ca/"}