@article{VMJ_2017_19_2_a5,
     author = {L. N. Shapovalova},
     title = {Gauss, {Peterson--Codazzi,} and {Ricci} equations in nonholonomic frames},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {49--57},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2017_19_2_a5/}
}