Water retention and characteristic curves representing tropical clay soils from Africa
Journal Article published 2020 in E3S Web of Conferences volume 195 on page 01019
Authors: K.M.A. Alhaj, G. Biscontin, M.Z.E.B Elshafie, A.S. Osman
http://dx.doi.org/10.1051/e3sconf/202019501019

Soil water retention curves representing two tropical clay soils from Sudan
Journal Article published 2016 Jan in Géotechnique volume 66 issue 1 on pages 71 to 84
Authors: K. M. A. Al Haj, J. R. Standing
http://dx.doi.org/10.1680/jgeot.15.p.086

Mechanical properties of two expansive clay soils from Sudan
Journal Article published 2015 Apr in Géotechnique volume 65 issue 4 on pages 258 to 273
Authors: K.M.A. Al Haj, J.R. Standing
http://dx.doi.org/10.1680/geot.14.p.139