Relative generic singularities of the exponential map

Janeczko, S.; Mostowski, T.

Compositio Mathematica, Volume 96 (1995) p. 345-370

Coisotropic varieties and their generating families

Janeczko, S.

Annales de l'I.H.P. Physique théorique, Volume 56 (1992) p. 429-441

Constrained lagrangian submanifolds over singular constraining varieties and discriminant varieties

Janeczko, Stanislaw

Annales de l'I.H.P. Physique théorique, Volume 46 (1987) p. 1-26