by Happle, R, Kalveram, K J, Büchner, U, Echternacht-Happle, K, Göggelmann, W, Summer, K H
Published in Dermatologica (01.01.1980)

by Müller, R P, Peters, P E, Echternacht-Happle, K, Happle, R
Published in Lymphology (01.12.1979)

by Bröcker, Eva-Bettina, Echternacht-Happle, Karin, Hamm, Henning, Happle, Rudolf
Published in Journal of investigative dermatology (01.05.1987)

by Hamm, H, Echternacht-Happle, K, Happle, R
Published in H + G. Zeitschrift für Hautkrankheiten (01.09.1984)

by Kövary, P M, Opferkuch, W, Echternacht-Happle, K, Happle, R
Published in Archives of dermatological research (01.02.1981)

by Happle, R, Cebulla, K, Echternacht-Happle, K
Published in Archives of dermatology (1960) (01.11.1978)