@article{CTGDC_2010__51_3_224_0, author = {Kock, Anders}, title = {Abstract projective lines}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, eid = {4}, pages = {224--240}, publisher = {Andr\'ee CHARLES EHRESMANN}, volume = {51}, number = {3}, year = {2010}, mrnumber = {2731719}, zbl = {1223.51001}, language = {en}, url = {http://www.numdam.org/item/CTGDC_2010__51_3_224_0/} }
Kock, Anders. Abstract projective lines. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 51 (2010) no. 3, article no. 4, 17 p. http://www.numdam.org/item/CTGDC_2010__51_3_224_0/
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