El-Gendi, S., & Hassan, A. (1969). Solution of Variational Problems with Bounded Control Variables. The Institute of National Planning.
Citace podle Chicago (17th ed.)El-Gendi, Slah, a Ahmed Hassan. Solution of Variational Problems with Bounded Control Variables. Cairo: The Institute of National Planning, 1969.
Citace podle MLA (9th ed.)El-Gendi, Slah, a Ahmed Hassan. Solution of Variational Problems with Bounded Control Variables. The Institute of National Planning, 1969.