TY - JOUR AU - B. F. Skubenko TI - An isolation theorem for decomposable forms of purely real algebraic fields of degree $n\ge3$ JO - Zapiski Nauchnykh Seminarov POMI PY - 1981 SP - 167 EP - 171 VL - 112 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1981_112_a12/ LA - ru ID - ZNSL_1981_112_a12 ER -