%0 Journal Article %A È. A. Golubov %T Conditions for the finite approximability of naturally totally ordered commutative semigroups %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1970 %P 10-18 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1970_2_a1/ %G ru %F IVM_1970_2_a1