@article{JIS_2008__11_3_a5,
     author = {Katriel, Jacob},
     title = {On a generalized recurrence for {Bell} numbers},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2008__11_3_a5/}
}