Dimitri Leemans. Some Rank Five Geometries Related to the Mathieu Group M::23::. Journal of Combinatorial Theory, Series A, 95(2):365-372, 2001. [doi]
@article{Leemans01,
title = {Some Rank Five Geometries Related to the Mathieu Group M::23::},
author = {Dimitri Leemans},
year = {2001},
doi = {10.1006/jcta.2000.3167},
url = {http://dx.doi.org/10.1006/jcta.2000.3167},
researchr = {https://researchr.org/publication/Leemans01},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {95},
number = {2},
pages = {365-372},
}