Geodesic
Collineations, Correlations, Polarities, and Conics
Canadian journal of mathematics, Tome 19 (1967) no. 1, pp. 1027-1041

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

It is well known that planes of characteristic 2 behave differently from other Pappian projective planes. For this reason their detailed properties are usually ignored in books on synthetic projective geometry, especially when conies are being discussed. This can give rise to the misleading impression that planes of characteristic 2 are more difficult to deal with, while a cursory introduction to conies in such planes (e.g. Theorem 4.3) may suggest that the notion of “pole and polar” no longer exists. 
Rigby, J. F. Collineations, Correlations, Polarities, and Conics. Canadian journal of mathematics, Tome 19 (1967) no. 1, pp. 1027-1041. doi: 10.4153/CJM-1967-094-x
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