@article{JGG_2021_25_2_JGG_2021_25_2_a2,
     author = {N. Phat Nguyen },
     title = {Projective {Line} {Revisited}},
     journal = {Journal for geometry and graphics},
     pages = {187--195},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {2021},
     url = {http://geodesic.mathdoc.fr/item/JGG_2021_25_2_JGG_2021_25_2_a2/}
}