Vi. Denisov et An. Umnov, PARAMETRIZED POST-NEWTONIAN FORMALISM FOR NONMETRIC THEORIES OF GRAVITATION, Theoretical and mathematical physics, 96(1), 1993, pp. 827-836
The parametrized post-Newtonian formalism is generalized to nonmetric
theories of gravitation. The dynamics of a system of two gravitating b
odies is investigated in the framework of this formalism. Experiments
to measure the numerical values of some combinations of the PPN parame
ters are proposed.