TY  - JOUR
AU  - Gholami, Maryam
AU  - Norouzi, Mohammad
TI  - A Survey of Direct Methods for Solving Variational Problems
JO  - Journal of Physical & Theoretical Chemistry
VL  - 12
IS  - 3
SP  - 187
EP  - 198
PY  - 2015
DO  - 
ER  -