1. Formulation of Euler-Lagrange equations for fractional variational problems,;O. P. Agrawal;J. Math. Anal. Appl.,2002
2. A general formulation and solution scheme for fractional optimal control problems,;O. P. Agrawal;Nonlinear Dynam.,2004
3. Fractional variational calculus and the transversality conditions,;O. P. Agrawal;J. Phys. A,2006
4. A general finite element formulation for fractional variational problems,;O. P. Agrawal;J. Math. Anal. Appl.,2008
5. A Hamiltonian formulation and a direct numerical scheme for fractional optimal control problems,;O. P. Agrawal;J. Vib. Control,2007