@article{10_4064_fm_82_4_357_361,
     author = {Fred Galvin and Jean Larson},
     title = {Pinning countable ordinals},
     journal = {Fundamenta Mathematicae},
     pages = {357--361},
     publisher = {mathdoc},
     volume = {82},
     number = {4},
     year = {1974},
     doi = {10.4064/fm-82-4-357-361},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-82-4-357-361/}
}