@BOOK{ Book!D - 93989731,
AUTHOR = "/ by V. Guser, V. Litvinenko, A. Mordkovich",
TITLE = "Solving problems in geometry",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد و انتشارات دانشگاه تبریز",
SUBJECT = "Geometry - Problems, exercises, etc",
URL = "/book/93989731/Solving-problems-in-geometry/"}