%0 Journal Article %A T. N. Fomenko %T Brondsted order in a metric space and generalizations of Caristi theorem %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2017 %P 21-25 %N 5 %U http://geodesic.mathdoc.fr/item/VMUMM_2017_5_a2/ %G ru %F VMUMM_2017_5_a2