Frank De Clerck, Francesco Mazzocca. The Classification of Polarities in Reducible Projective Spaces. Eur. J. Comb., 9(3):245-247, 1988. [doi]
@article{ClerckM88,
title = {The Classification of Polarities in Reducible Projective Spaces},
author = {Frank De Clerck and Francesco Mazzocca},
year = {1988},
doi = {10.1016/S0195-6698(88)80015-5},
url = {http://dx.doi.org/10.1016/S0195-6698(88)80015-5},
researchr = {https://researchr.org/publication/ClerckM88},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {9},
number = {3},
pages = {245-247},
}