TY - JOUR AU - B. A. Subbotovskaya TI - Realization of linear functions by formulas using $\vee$, $\&$, $^-$ JO - Doklady Akademii Nauk PY - 1961 SP - 553 EP - 555 VL - 136 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1961_136_3_a9/ LA - ru ID - DAN_1961_136_3_a9 ER -