%0 Journal Article %A E. T. Shavgulidze %T Conditions for certain forms of completeness in the class of projective limits of sequences of inductive limits of sequences of Fr\'echet spaces %J Funkcionalʹnyj analiz i ego priloženiâ %D 1977 %P 91-92 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1977_11_1_a23/ %G ru %F FAA_1977_11_1_a23