Lenc, Michal; Musilová, Jana; Czudková, Lenka:
Lepage forms theory applied.
(English).Archivum Mathematicum,
vol. 45
(2009),
issue 4,
pp. 279-287
Czudková, Lenka; Janová, Jitka; Musilová, Jana: Trivial constraint variational problem.
(English).
In:
Čadek, Martin (ed.): Proceedings of the 25th Winter School "Geometry and Physics".
Circolo Matematico di Palermo, Palermo, 2006.
pp. [67]-74