1. Cognitive decline and Alzheimer's disease in Down syndrome;Alexander,1997
2. Problem solving and planning: Two sides of the same coin;Ashman,1985
3. Relation between planning and simultaneous-successive processing;Ashman;Perceptual and Motor Skills,1980
4. Working memory;Baddeley,1974
5. Emergence of a powerful connection between sensory and cognitive functions across the adult lifespan: A new window to the study of cognitive aging?;Baltes;Psychology and Aging,1997