O jisté ploše bikvadratické, jež souvisí s theorií komplexu os rotačních ploch kuželových jdoucích třemi danými body
O křivkovém a plošném elementu třetího řádu projektivního prostoru
O pätnástom Hilbertovom probléme
O šestnáctém Hilbertově problému
On 3-folds in which are scrolls
On a class of rational cuspidal plane curves.
On a sequence arising in algebraic geometry.
On blowing down projective spaces in singular varieties.
On Castelnuovo's equivalence defect.
On codimension-two subvarieties of hypersurfaces.
On completeness of varieties in enumerative geometry
On completing conics
On contributions of embedded components to intersection theory, a first approach
On degenerate secant varieties of secant defect two.
On elementary transformations of ruled surfaces.
On hypersurfaces in with fat points in general position.
On inflection points, monomial curves, and hypersurfaces containing projective curves.
On inflection points of some type of quartics with a single triple point
On inflection points of the plane quartic with two nodal and one flexnodal points
On Kodaira energy and adjoint reduction of polarized threefolds.