Chadi, M., E. hadj Y. Brahim, and R. Djeffal. “THE SOUTHERN TELLIAN SERIES AT NUMMULITES (NE ALGERIA): STRATIGRAPHY AND STRUCTURAL CONSEQUENCES”. European Scientific Journal, ESJ, Vol. 9, no. 21, July 2013, doi:10.19044/esj.2013.v9n21p%p.