@article{MZ_1968__105_170959,
     author = {T. de de Joostse},
     title = {Prime {Ideals} and {Nil} {Radicals} in {Ringoids.}},
     journal = {Mathematische Zeitschrift},
     pages = {21--35},
     publisher = {mathdoc},
     volume = {105},
     year = {1968},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__105_170959/}
}