@article{10_4153_CMB_1960_027_0,
     author = {Brown, William G.},
     title = {Hesse's {Theorem} for a {Quadrilateral} {Whose} {Sides} {Touch} a {Conic}},
     journal = {Canadian mathematical bulletin},
     pages = {221--223},
     year = {1960},
     volume = {3},
     number = {3},
     doi = {10.4153/CMB-1960-027-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1960-027-0/}
}