@article{SLC_2003-2005_50_a5,
     author = {Helmut Prodinger},
     title = {The {Kernel} {Method:} {A} {Collection} of {Examples}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {50},
     year = {2003-2005},
     url = {http://geodesic.mathdoc.fr/item/SLC_2003-2005_50_a5/}
}