- M.D. Pollock, “Compactification and inflation in the superstring theory from the condensation of gravitino pairs”, Physics Letters B, 199, № 4, 1987, 509

- Matthias Blau, “Symmetries and pseudo-Riemannian manifolds”, Reports on Mathematical Physics, 25, № 1, 1988, 109

- Gary W. Gibbons, The Arrows of Time, 2012, 109

- Rodrigo Maier, Nelson Pinto-Neto, Ivano Damião Soares, “Bouncing model in brane world theory”, Phys. Rev. D, 87, № 4, 2013, 043528

- Boris L. Altshuler, “Kaluza-Klein ansatz for quadratic-curvature theory. A geometrical way to mass hierarchy”, Phys. Rev. D, 35, № 12, 1987, 3804
