Construction of a net without transversals over a non-planar near-field.
(English).Czechoslovak Mathematical Journal,
vol. 24
(1974),
issue 2,
pp. 301-310
[3] André J.: Über Parallelstrukturen. Math. Zeitschrift 76 (1961). 85-102. MR 0138025
[4] Davis E. H.: Incidence systems associated with nonplanar near-fields. Canadian Journal of Mathematics 22 (1970) II. 939-952. DOI 10.4153/CJM-1970-108-1 | MR 0301619