TY - JOUR AU - V. M. Kopytov TI - Preorderability of groups of formal power series JO - Algebra i logika PY - 1998 SP - 301 EP - 319 VL - 37 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1998_37_3_a4/ LA - ru ID - AL_1998_37_3_a4 ER -