Augmentative and Alternative Communication for Children, Adolescents and Adults with Developmental Disorders

Stephen von Tetzchner is Professor Emeritus of Developmental Psychology at the Department of Psychology, University of Oslo, Norway. Harald Martinsen is Professor Emeritus at the Department of Special Needs Education, University of Oslo, Norway. Kristine Stadskleiv is Professor at the Department of Special Needs Education, University of Oslo, Norway.