Geodesic
On the structure of finite commutative rings with an identity
Matematičeskie zametki, Tome 10 (1971) no. 6, pp. 679-688 
A. A. Nechaev. On the structure of finite commutative rings with an identity. Matematičeskie zametki, Tome 10 (1971) no. 6, pp. 679-688. http://geodesic.mathdoc.fr/item/MZM_1971_10_6_a9/
@article{MZM_1971_10_6_a9,
     author = {A. A. Nechaev},
     title = {On the structure of finite commutative rings with an identity},
     journal = {Matemati\v{c}eskie zametki},
     pages = {679--688},
     year = {1971},
     volume = {10},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_6_a9/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

We describe the structure of the finite primary rings of principal ideals; we prove that every such ring is the factor-ring of the ring of integers of a finite extension of the field of rational $p$-adic numbers; we touch on the problem of the number of nonisomorphic rings of this type with a fixed number of elements.