@article{AMI_2010_37_a1,
     author = {Rachid A{\"\i}t Amrane and Hac\`ene Belbachir},
     title = {Non-integerness of class of hyperharmonic numbers},
     journal = {Annales mathematicae et informaticae},
     pages = {7--11},
     publisher = {mathdoc},
     volume = {37},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_2010_37_a1/}
}