@article{MZ_1970__115_171326,
     author = {Charles E. Johnson},
     title = {Minimal {Non-Splitting} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--3},
     publisher = {mathdoc},
     volume = {115},
     year = {1970},
     zbl = {0185.05404},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__115_171326/}
}