Mauerberg-deCastro, Eliane; Cozzani, Marcia Valeria; dePaula, Adriana Ines. Motor perseveration in children with Down syndrome using the "A not B" sandbox task paradigm. Journal of Sport & Exercise Psychology. Champaign: Human Kinetics Publ Inc, v. 31, p. S37-S38, 2009. Available at: <http://hdl.handle.net/11449/41436>.