On the spectrum of the p -biharmonic operator. El Khalil, Abdelouahed; Kellati, Siham; Touzani, Abdelfattah — 2002 Electronic Journal of Differential Equations (EJDE) [electronic only]
A nonlinear boundary problem involving the p -bi-Laplacian operator. El Khalil, Abdelouahed; Kellati, Siham; Touzani, Abdelfattah — 2005 International Journal of Mathematics and Mathematical Sciences