@proceedings { 5934,
	title = {{\"U}ber qualitative Ver{\"a}nderungen des Den-kens bei erfolgloser Aufgabenbearbeitung},
	year = {1985},
	pages = {313-316},
	publisher = {Ver-lag f{\"u}r Psychologie, Dr. C.J. Ho-grefe},
	address = {G{\"o}ttingen},
	author = {Michael Kerres and Reulecke, W.},
	editor = {Albert, D.}
}
