@article{MZ_1975__144_172238,
     author = {Wolfgang Knapp and Michael B\"urker},
     title = {Zur {Vermutung} von {Sims} \"uber primitive {Permutationsgruppen.}},
     journal = {Mathematische Zeitschrift},
     pages = {19--24},
     publisher = {mathdoc},
     volume = {144},
     year = {1975},
     zbl = {0294.20002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__144_172238/}
}