A.S. Pereira, M.L. Magalhães, and S.J.M. Cartaxo. “Development of Transient Differential Model of Bell-Delaware Method With A Case Study of Water/TiO2 Nanofluid”. Journal of Advanced Thermal Science Research, vol. 2, no. 1, Jan. 2015, pp. 12-21, doi:10.15377/2409-5826.2015.02.01.2.