@article{MOMA_1976__81_177737,
     author = {Karel Prikry},
     title = {Kurepa's {Hypothesis} and a {Problem} of {Ulam} on {Families} of {Measures.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {41--58},
     year = {1976},
     volume = {81},
     zbl = {0345.04001},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1976__81_177737/}
}