//-->
Cybernetics without mathematics
Greniewski, Henryk, (1960)
Dynamic optimization : the calculus of variations and optimal control in economics and management
Kamien, Morton I., (1981)
Analytical methods in economics
Takayama, Akira, (2000)
New conservation laws in a neoclassical von Neumann model
Kataoka, Haruo, (1995)