@article{ZNSL_2000_272_a18,
     author = {A. S. Sivatski},
     title = {On the reduced {Whitehead} group of an affine conic},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {294--302},
     year = {2000},
     volume = {272},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_272_a18/}
}