Nach., 12, 143* Poincaré, H. (1908) "Science and Method"* Rastall, P. (1979) The Newtonian theory of gravitation and its generalization, "Canadian Journal of Physics" 57, 944-973* Rosen, N. (1971) Theory of gravitation, "Physical Review D" 3, 2317* Rosen, N. (1973) A bimetric theory of gravitation, "General Relativity and Gravitation" 4, 435-447.
Nach., 12, 143* Poincare, H. (1908) Science and Method* Rastall, P. (1979) The Newtonian theory of gravitation and its generalization, Canadian Journal of Physics 57, 944—973* Rosen, N. (1971) Theory of gravitation, Physical Review D 3, 2317* Rosen, N. (1973) A bimetric theory of gravitation, General Relativity and Gravitation 4, 435—447.