@article{AMC_2013__6_2_a20,
     author = {Marko Petkov\v{s}ek},
     title = {
		{Herbert} {S.} {Wilf} (1931-2012)
	},
     journal = {Ars mathematica contemporanea},
     year = {2013},
     volume = {6},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMC_2013__6_2_a20/}
}