Items where Author is "Janeczko, St."
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MPIM Preprint
Janeczko, St. (1986) Covariant symplectic geometry of binary forms and singularities of systems of rays. MPIM Preprint Series 1986 (40).
Janeczko, St. and Kowalczyk, A. (1986) Stability criteria and classifcation of singularities for equivariant lagrangian submanifolds. MPIM Preprint Series 1986 (43).