@article{Ouerfelli_2008 author = {Hanene Ouerfelli and Mustapha Najjari and Z. Baouab and Sassi Ben Nasrallah}, title = {Experimental Study of the Influence of Gravity and Injected-Gas Flow Rate on Drainage in Two-Dimensional Porous Media}, journal = {Journal of Porous Media}, issn = {1091-028X}, year = {2008}, volume = {11}, number = {8}, pages = {781--789} }