@article{ISU_2017_17_4_a1,
     author = {N. P. Mozhey},
     title = {Connections of nonzero curvature on three-dimensional non-reductive spaces},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {381--393},
     year = {2017},
     volume = {17},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2017_17_4_a1/}
}