S.V. Patankar International Journal of Heat and Mass Transfer 24 (1981) 957-957. doi:10.1016/S0017-9310(81)80025-7 journal International Journal of Heat and Mass Transfer Copyright © unknown. Published by Elsevier Ltd Elsevier Ltd 0017-9310 24 5 1981 1981 957-957 957 957 10.1016/S0017-9310(81)80025-7 http://dx.doi.org/10.1016/S0017-9310(81)80025-7 doi:10.1016/S0017-9310(81)80025-7