TY - JOUR AU - N. Kehayopulu AU - J. S. Ponizovskii AU - M. Tsingelis TI - The embedding of an ordered semigroup into an ordered group by means of pseudoorder JO - Zapiski Nauchnykh Seminarov POMI PY - 1997 SP - 106 EP - 110 VL - 236 UR - http://geodesic.mathdoc.fr/item/ZNSL_1997_236_a11/ LA - en ID - ZNSL_1997_236_a11 ER -