An existence theorem for semi-primal algebras
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 3, Volume 22 (1968) no. 4, p. 559-570 
@article{ASNSP_1968_3_22_4_559_0,
     author = {Moore, H. G. and Yaqub, Adil},
     title = {An existence theorem for semi-primal algebras},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 22},
     number = {4},
     year = {1968},
     pages = {559-570},
     zbl = {0172.30901},
     mrnumber = {240029},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1968_3_22_4_559_0}
}

Moore, H. G.; Yaqub, Adil. An existence theorem for semi-primal algebras. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Serie 3, Volume 22 (1968) no. 4, pp. 559-570. http://www.numdam.org/item/ASNSP_1968_3_22_4_559_0/

[1] A.L. Foster, An existence theorem for functionally complete universal algebras, Math. Z. 71 (1959), 69-82. | MR 108456 | Zbl 0084.26001

[2] A.L. Foster and A.F. Pixley, Semi-categorical algebras I, semi-primat algebras, Math Z. 83 (1964), 147-169. | MR 163866 | Zbl 0117.26001

[3] I.N. Herstein, A note on rings with central nilpotent elements, Proc. Amer. Math. Soc. 5 (1954), 620. | MR 62714 | Zbl 0055.26003

[4] N.H. Mccoy, Rings and Ideals, Carus Math. Monog. 8, Buffalo, N. Y.: Math. Assoc. Amer., 1947. | MR 26038 | Zbl 0041.36406

[5] A. Yaqub, Semi-primal categorical independent algebrae, Math. Z. 93 (1966), 395-403. | MR 200222 | Zbl 0166.27303

[6] A. Yaqub, On certain classes of - and an existence theorem for - primal clusters, Ann Scuola Norm. Sup. Pisa 20 (1966), 1-13. | Numdam | MR 199142 | Zbl 0163.26601