@article{05014488, title = {Counting the number of unavoidable sets of a given size in a finite set of integers.}, journal = {Integers}, volume = {5}, year = {2005}, zbl = {1085.05015}, language = {en}, url = {http://dml.mathdoc.fr/item/05014488} }
Mills, Donald; Mitchell, Patrick. Counting the number of unavoidable sets of a given size in a finite set of integers.. Integers, Tome 5 (2005) . http://gdmltest.u-ga.fr/item/05014488/