@article{MOMA_1967__71_177401,
     author = {J.S. Pym},
     title = {Some {Results} on {Transversals} of {Families} of {Subsets.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {446--451},
     publisher = {mathdoc},
     volume = {71},
     year = {1967},
     zbl = {0189.29602},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1967__71_177401/}
}