%0 Journal Article %A J. Hamhalter %A E. A. Turilova %T Spectral order on unbounded operators and their symmetries %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 2018 %P 293-299 %V 160 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZKU_2018_160_2_a9/ %G en %F UZKU_2018_160_2_a9