00461nam a2200133Ia 4500008004100000245006500041260005100106516002000157650001400177650001400191650002300205830004200228856005700270140925s9999    xx            000 0 und d  aDown Syndrome Research and Practice /h[electronic resource]  bDown Syndrome Education International,cc2009.  aElectronic text  aPractice.  aResearch.  aSpecial Education.  aDown Syndrome Education International  uhttp://www.down-syndrome.org/research-practice/12/3/