Endomorphismen von ebenen Viergeweben (Beitrag zu einem Problem von J. Aczél). Václav Havel — 1970 Aequationes mathematicae
On Collineations on Three and on Four Lines in a Projective Plane. Václav Havel — 1970 Aequationes mathematicae
Nets Associated to Multigroupoids. (Short Communication). Václav Havel — 1970 Aequationes mathematicae
O definici střechy stejného spádu nad polygonálním půdorysem Václav Havel — 1956 Pokroky matematiky, fyziky a astronomie
O stereometrickém vybudování theorie kuželoseček Václav Havel — 1957 Pokroky matematiky, fyziky a astronomie
On semichained refinements of chains in equivalence lattice. (A note to a theorem of O. Borůvka.) Václav Havel — 1963 Czechoslovak Mathematical Journal
Zerlegungen in kartesischen Funktionen (Vorläufige Mitteilung) Václav Havel — 1965 Commentationes Mathematicae Universitatis Carolinae
A general coordinatization principle for projective planes with comparison of Hall and Hughes frames and with examples of generalized oval frames Václav Havel — 1974 Czechoslovak Mathematical Journal
One generalization of the fourth harmonic point (Preliminary communication) Václav Havel — 1967 Commentationes Mathematicae Universitatis Carolinae