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@article{10_4064_aa_28_4_387_389, author = {Carl Pomerance}, title = {On composite n for which \ensuremath{\varphi}(n) | n -1}, journal = {Acta Arithmetica}, pages = {387--389}, publisher = {mathdoc}, volume = {28}, number = {4}, year = {1975}, doi = {10.4064/aa-28-4-387-389}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-28-4-387-389/} }
Carl Pomerance. On composite n for which φ(n) | n -1. Acta Arithmetica, Tome 28 (1975) no. 4, pp. 387-389. doi : 10.4064/aa-28-4-387-389. http://geodesic.mathdoc.fr/articles/10.4064/aa-28-4-387-389/
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