Classical and Quantum Gravity.
Том 1.
1984.
С. 349-354
Families of metrics are found in synchronous coordinates generalising Tolman's spherically symmetric solutions, both for non-coherent dust and for special cases of perfect fluid with non-zero pressure. New metrics depend on an additional arbitrary function of R, theta , and they lead specifically to solutions of the Schwarzschild and Friedmann types (but differing from them in general, especially in their Petrov types and isometries).