@article{ZNSL_1972_29_a11,
     author = {A. L. Rukhin},
     title = {The estimation of the rotation parameter on a~sphere},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {74--91},
     publisher = {mathdoc},
     volume = {29},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1972_29_a11/}
}