@article{RO_1969__3_1_60_0,
     author = {Berge, C.},
     title = {Probl\`emes plaisans et d\'electables},
     journal = {Revue fran\c{c}aise d'informatique et de recherche op\'erationnelle. S\'erie verte},
     pages = {60--60},
     publisher = {EDP-Sciences},
     volume = {3},
     number = {V1},
     year = {1969},
     language = {fr},
     url = {http://www.numdam.org/item/RO_1969__3_1_60_0/}
}