%0 Journal Article %A M. M. Higuera %A A. V. Sinitsyn %T Existence of lower and upper solutions in reverse order with respect to a variable in a model of acidogenesis to anaerobic digestion %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematičeskoe modelirovanie i programmirovanie %D 2015 %P 55-68 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURU_2015_8_2_a4/ %G en %F VYURU_2015_8_2_a4