@article{ZNSL_1999_261_a3,
     author = {A. N. Glushakov and S. E. Kozlov},
     title = {The geometry of the sphere of the gauges of degree two},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {43--54},
     publisher = {mathdoc},
     volume = {261},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1999_261_a3/}
}