@article{TMF_1992_90_3_a9,
     author = {S. D. Odyntsov and I. L. Shapiro},
     title = {Curvature phase transition in~$R^2$ quantum gravity and induction of {Einstein} gravity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {469--480},
     year = {1992},
     volume = {90},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1992_90_3_a9/}
}