@article{PDML_1979__16_3-4_89_0,
     author = {Fraisse, R.},
     title = {Le forcing faible ; son utilisation pour caract\'eriser les relations unaires g\'en\'erales pour la cha{\^\i}ne ou la cons\'ecutivit\'e des entiers naturels (r\'esultat de {R.} {Solovay,} 1976)},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {89--99},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {16},
     number = {3-4},
     year = {1979},
     mrnumber = {602657},
     zbl = {0449.03024},
     language = {fr},
     url = {http://www.numdam.org/item/PDML_1979__16_3-4_89_0/}
}