Porosity effect on the boundary layer Bodewadt flow of a magnetic nanofluid in the presence of geothermal viscosityVimal Kumar Joshi, Paras Ram, Ravi Kumar Sharma and Dharmendra TripathiEur. Phys. J. Plus, 132 6 (2017) 254DOI: https://doi.org/10.1140/epjp/i2017-11511-0