The number of relatively prime subsets and phi functions for {m,m+1,⋯,n}.
El Bachraoui, Mohamed
Integers, Tome 7 (2007), / Harvested from The Electronic Library of Mathematics
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Publié le : 2007-01-01
EUDML-ID : urn:eudml:doc:129015 
@article{05242325,
     title = {The number of relatively prime subsets and phi functions for },
     journal = {Integers},
     volume = {7},
     year = {2007},
     zbl = {1139.11005},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05242325}
}

El Bachraoui, Mohamed. The number of relatively prime subsets and phi functions for . Integers, Tome 7 (2007) . http://gdmltest.u-ga.fr/item/05242325/