%0 Journal Article %A V. F. Chistyakov %A E. V. Chistyakova %T On the concept of index for partial differential algebraic equations arising in modelling of processes in power plants %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematičeskoe modelirovanie i programmirovanie %D 2017 %P 5-23 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURU_2017_10_2_a0/ %G en %F VYURU_2017_10_2_a0