@article{ALCO_2022__5_5_803_0,
     author = {Johnson, Norman L.},
     title = {Twisted quadrics and $\alpha $-flocks},
     journal = {Algebraic Combinatorics},
     pages = {803--826},
     publisher = {The Combinatorics Consortium},
     volume = {5},
     number = {5},
     year = {2022},
     doi = {10.5802/alco.216},
     language = {en},
     url = {https://alco.centre-mersenne.org/articles/10.5802/alco.216/}
}