@article{article1143,
  title = {On the trace formula of second order differential equation given with non seperable boundary conditions},
  author = {BAYRAMOV, A. and ÖZTÜRK USLU, S. and KIZILBUDAK ÇALIŞKAN, S.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2005},
  volume = {23},
  pages = {57-64},
  doi = {}
}