@article{05822286, title = {On relatively prime subsets and supersets.}, journal = {Integers}, volume = {10}, year = {2010}, pages = {565-574}, doi = {10.1515/INTEG.2010.047}, zbl = {1213.11013}, language = {en}, url = {http://dml.mathdoc.fr/item/05822286} }
El Bachraoui, Mohamed. On relatively prime subsets and supersets.. Integers, Tome 10 (2010) pp. 565-574. doi : 10.1515/INTEG.2010.047. http://gdmltest.u-ga.fr/item/05822286/