@article{MZ_1965__87_170387,
     author = {Andrew Astromoff},
     title = {Some structure theorems for primal and categorical algebras.},
     journal = {Mathematische Zeitschrift},
     pages = {365--377},
     year = {1965},
     volume = {87},
     zbl = {0136.26201},
     url = {http://geodesic.mathdoc.fr/item/MZ_1965__87_170387/}
}