Geodesic
Character modules, dimension and purity
Glasgow mathematical journal, Tome 13 (1972) no. 2, pp. 144-146

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In this paper we use the Bourbaki conventions for rings and modules: all rings are associative but not necessarily commutative and have an identity element; all modules are unital. 
Fieldhouse, David J. Character modules, dimension and purity. Glasgow mathematical journal, Tome 13 (1972) no. 2, pp. 144-146. doi: 10.1017/S0017089500001567
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