Geodesic
Derivable Nets1)
Canadian mathematical bulletin, Tome 8 (1965) no. 5, pp. 601-613

Voir la notice de l'article provenant de la source Cambridge University Press

Up to a duality, the known finite projective planes which are not translation planes all are equivalent to affine planes which contain the type of structure defined below to be a "derivable net". (Insofar as the known finite planes are concerned, this means that the intimate connection between projective geometry and linear algebra still holds for non-Desarguesian planes.) 
Ostrom, T. G. Derivable Nets1). Canadian mathematical bulletin, Tome 8 (1965) no. 5, pp. 601-613. doi: 10.4153/CMB-1965-043-1
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[1] 1. Andre', J., Űber nicht-Desarguessche Ebenen mit Transitiver Translationsgruppe. Math. Z. 60 (1954), 156-186. Google Scholar

[2] 2. Bruck, R.H., Existence Problems for Classes of Finite Planes. Mimeographed notes of lectures delivered to the Canadian Mathematics Seminar, meeting in Saskatoon, Sask., August, 1963. Google Scholar

[3] 3. Bruck, R.H. and Bose, R. C., The Construction of Translation Planes from Projective Spaces. J. Alg. 1 (1964), 85-102. Google Scholar

[4] 4. Ostrom, T.G., Semi-translation Planes. Trans. Am. Math. Soc. 111 (1964), 1-18. Google Scholar

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