@article{ZNSL_2006_331_a7,
     author = {V. F. Molchanov},
     title = {Canonical representations on two-sheeted hyperboloids},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {91--124},
     publisher = {mathdoc},
     volume = {331},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2006_331_a7/}
}