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Reid, J.D. (1977). Quasi-pure-injectivity and quasi-pure projectivity. In: Arnold, D.M., Hunter, R.H., Walker, E.A. (eds) Abelian Group Theory. Lecture Notes in Mathematics, vol 616. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0068198
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DOI: https://doi.org/10.1007/BFb0068198
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