@article{10_4064_fm_100_2_145_155,
     author = {A. Kanamori},
     title = {Some combinatorics involving ultrafilters},
     journal = {Fundamenta Mathematicae},
     pages = {145--155},
     publisher = {mathdoc},
     volume = {100},
     number = {2},
     year = {1978},
     doi = {10.4064/fm-100-2-145-155},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-100-2-145-155/}
}