Geodesic
Submodules and direct summands
Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 6, pp. 3-31.

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This paper contains new and known results on modules in which submodules are close to direct summands. The main results are presented with proofs. 
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A. N. Abyzov; A. A. Tuganbaev. Submodules and direct summands. Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 6, pp. 3-31. http://geodesic.mathdoc.fr/item/FPM_2008_14_6_a0/

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