%0 Journal Article %A P. D. Shirkov %T Numerical methods of calculations for chemical and ionic equilibrium %J Matematičeskoe modelirovanie %D 1991 %P 42-60 %V 3 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1991_3_6_a4/ %G ru %F MM_1991_3_6_a4