@article{article504,
  title = {Analytical model for estimation of temperature distribution in parallel and counter flow double pipe heat exchangers},
  author = {KURŞUN, B. and ÖRNEK, B.N. and ÖKTEN, K.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2017},
  volume = {35},
  pages = {557-569},
  doi = {}
}