The linear Legendre mother wavelets operational matrix of integration and its application. - Farhad Khellat; Sohrab Ali Yousefi (J. Frankl. Inst., 2006)

Suboptimal control of linear systems with delays in state and input by orthonormal basis. - Farhad Khellat; Nastaran Vasegh (Int. J. Comput. Math., 2011)

The Kuramoto-Sivashinsky equation revisited: Low-dimensional corresponding systems. - Farhad Khellat; Nastaran Vasegh (Commun. Nonlinear Sci. Numer. Simul., 2014)