TY - JOUR AU - G. L. Shpilker TI - A fourth-order commutative hypercomplex system JO - Doklady Akademii Nauk PY - 1985 SP - 1090 EP - 1093 VL - 282 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1985_282_5_a14/ LA - ru ID - DAN_1985_282_5_a14 ER -