@article{TMF_1987_72_2_a4,
     author = {I. L. Buchbinder and S. L. Lyakhovich},
     title = {Canonical quantization of theories with higher derivatives. {Quantization} of $R^2$ gravitation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {204--218},
     year = {1987},
     volume = {72},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_72_2_a4/}
}