@article{10_4064_fm_117_1_75_80,
     author = {Kenneth Kunen},
     title = {Maximal \ensuremath{\sigma}-independent families},
     journal = {Fundamenta Mathematicae},
     pages = {75--80},
     publisher = {mathdoc},
     volume = {117},
     number = {1},
     year = {1983},
     doi = {10.4064/fm-117-1-75-80},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-117-1-75-80/}
}