Unitary analogue of the Nagell totient function
Morgado, José
Portugaliae mathematica, Tome 21 (1962), p. 221-232 / Harvested from Portugaliae Mathematica
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Publié le : 1962-01-01
EUDML-ID : urn:eudml:doc:114894 
@article{2404,
     author = {Morgado, Jos\'e},
     title = {Unitary analogue of the Nagell totient function},
     journal = {Portugaliae mathematica},
     volume = {21},
     year = {1962},
     pages = {221-232},
     zbl = {0111.25202},
     mrnumber = {0146128},
     language = {en},
     url = {http://dml.mathdoc.fr/item/2404}
}

Morgado, José. Unitary analogue of the Nagell totient function. Portugaliae mathematica, Tome 21 (1962) pp. 221-232. http://gdmltest.u-ga.fr/item/2404/