Geodesic
A Non-Trivial Ring with Non-Rational Injective Hull
Canadian mathematical bulletin, Tome 10 (1967) no. 2, pp. 275-282

Voir la notice de l'article provenant de la source Cambridge University Press

Several authors have investigated "rings of quotients" of a given ring R . (See, for example, Johnson [7], Johnson and Wong [8], Utumi [11], Findlay and Lambek [5], Lambek [9], and Bourbaki [2].) 
Berthiaume, P. A Non-Trivial Ring with Non-Rational Injective Hull. Canadian mathematical bulletin, Tome 10 (1967) no. 2, pp. 275-282. doi: 10.4153/CMB-1967-027-9
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