@article{IVM_1974_12_a4,
     author = {G. Shopf},
     title = {The dependence of the hypersurfaces of associated types for systems of associated orders on the choice of the associated orders},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {35--46},
     publisher = {mathdoc},
     number = {12},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_12_a4/}
}