Ternary rings of Pappian planes Libuše Marková (1976) Sborník prací Přírodovědecké fakulty University Palackého v Olomouci. Matematika
Ternary rings with zero associated to translation planes Dalibor Klucký, Libuše Marková (1973) Czechoslovak Mathematical Journal
The Collineation Groups of Derived Translation Planes. II. Michael Walker (1976) Mathematische Zeitschrift
The Gergonne point generalized through convex coordinates. Boyd, J.N., Raychowdhury, P.N. (1999) International Journal of Mathematics and Mathematical Sciences
The theorem of desargues in planes with analogues to Euclidian angular bisectors. B.B. Phadke (1976) Mathematica Scandinavica
Translations and Axial Collineations of Affine Designs. Vassili C. Mavron, Alan D. Griffiths (1975) Mathematische Zeitschrift