@article{IVM_1994_8_a1,
     author = {A. V. Aminova and D. A. Kalinin},
     title = {$H$-projectively equivalent four-dimensional {Riemannian} connections},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {11--20},
     publisher = {mathdoc},
     number = {8},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_8_a1/}
}