@article{JIS_2014__17_3_a4,
     author = {Ayad,  Mohamed and Coia,  Vincenzo and Kihel,  Omar},
     title = {The number of relatively prime subsets of a finite union of sets of consecutive integers},
     journal = {Journal of integer sequences},
     year = {2014},
     volume = {17},
     number = {3},
     zbl = {1285.11006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2014__17_3_a4/}
}