-
Е. А. Кудрявцева, “Топология пространств функций Морса на поверхностях”, Матем. заметки, 92:2 (2012),
241–261 
; E. A. Kudryavtseva, “The Topology of Spaces of Morse Functions on Surfaces”, Math. Notes, 92:2 (2012), 219–236 
; E. A. Kudryavtseva, “The Topology of Spaces of Morse Functions on Surfaces”, Math. Notes, 92:2 (2012),