Ganat, T.A. and Hrairi, M. and Maulianda, B. and Motaei, E. (2019) Analytical model for predicting frictional pressure drop in upward vertical two-phase flowing wells. Heat and Mass Transfer/Waerme- und Stoffuebertragung, 55 (8). pp. 2137-2151. ISSN 09477411