On the geometry of a partial product structure Josef Srovnal — 1980 Czechoslovak Mathematical Journal
Two-parametric systems of three-dimensional spaces in a unimodular six-dimensional affine space Josef Srovnal — 1986 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
The application of Pluecker’s line-geometry to the study of polar properties of quadrics Josef Srovnal — 1971 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica-Physica-Chemica