@article{10_4153_CMB_1969_020_9,
     author = {Mathsen, Ronald M.},
     title = {\ensuremath{\lambda}(n)-Parameter {Families}},
     journal = {Canadian mathematical bulletin},
     pages = {185--191},
     year = {1969},
     volume = {12},
     number = {2},
     doi = {10.4153/CMB-1969-020-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-020-9/}
}