D. Srinivasacharya, O. Surender, “Non-Darcy natural convection from a vertical plate with a uniform wall temperature and concentration in a doubly stratified porous medium”, Prikl. Mekh. Tekh. Fiz., 56:4 (2015), 60–71; J. Appl. Mech. Tech. Phys., 56:4 (2015), 590–600
