- Peter Baekler, E.W. Mielke, “Effective Einsteinian gravity from Poincaré gauge field theory”, Physics Letters A, 113, № 9, 1986, 471
- M.O Katanaev, I.V Volovich, “Two-dimensional gravity with dynamical torsion and strings”, Annals of Physics, 197, № 1, 1990, 1
- Ignjat A. Nikolić, “Constraint algebra from local Poincaré symmetry”, Gen Relat Gravit, 24, № 2, 1992, 159
- I A Nikolic, “Schwinger's energy-energy brackets in the U
4
theory of gravity”, Class. Quantum Grav., 7, № 10, 1990, 1895
- CHRISTOPHER KOHLER, “THE EINSTEIN–CARTAN–MAXWELL THEORY WITH SCALAR FIELD THROUGH A FIVE-DIMENSIONAL UNIFICATION”, Int. J. Mod. Phys. A, 15, № 08, 2000, 1235
- P. Baekler, E.W. Mielke, R. Hecht, F.W. Hehl, “Kinky torsion in a poincaré gauge model of gravity coupled to a massless scalar field”, Nuclear Physics B, 288, 1987, 800