by Wirz-Justice, Anna, Remé, Charlotte, Prünte, Alexandra, Heinen, Ursula, Graw, Peter, Urner, Ursula
Published in Biological psychiatry (1969) (15.03.1997)

by Tangermann, Stefan, Heinen, Ursula, Thorun, Christian, Brümmer, Bernhard
Published in Ifo schnelldienst (16.10.2007)

by Brümmer, Bernhard, Tangermann, Stefan, Heinen, Ursula, Thorun, Christian
Published in Ifo Schnelldienst (2007)

by Heinen-Esser, Ursula
Published in Die Welt (16.11.2019)