@article{ZNSL_1999_265_a16,
     author = {M. I. Kyurshina and A. V. Yakovlev},
     title = {$T$-forms and their properties},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {229--236},
     publisher = {mathdoc},
     volume = {265},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1999_265_a16/}
}