@article{10_4153_CJM_1973_009_3,
     author = {Tucker, Alan},
     title = {The {Strong} {Perfect} {Graph} {Conjecture} for {Planar} {Graphs}},
     journal = {Canadian journal of mathematics},
     pages = {103--114},
     year = {1973},
     volume = {25},
     number = {1},
     doi = {10.4153/CJM-1973-009-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-009-3/}
}