Does working memory play any role in adults' mental multiplication? poster presented at the IX. Conference of the European Society for Cognitive Psychology, Würzburg, September 1996 - Seitz-Stein, Katja ca. 20./21. Jh; Schumann-Hengsteler, Ruth 1957- (Eichstätter Berichte zur Entwicklungs- und Pädagogischen Psychologie, 1996)