Classification of 4-Dimensional Generalized Symmetric Planes.
Classification of 4-Dimensional Symmetric Planes.
Holomorphic polygons.
Independence structures in the geometry of orders.
Poisson-Nijenhuis structures
Real analytic projective planes with large automorphism groups.
Relative differential -characters.
Representation theorem for stochastic differential equations in Hilbert spaces and its applications.
Sur une relation remarquable entre quelques unes des singularités réelles des courbes algébriques planes
The projective interpretation of the eight 3-dimensional homogeneous geometries.
Ueber die Thatsachen, die der Geometrie zum Grunde liegen.