1947
Bibliografía (14 obras)
Quality of life technology
2013
The encyclopedia of aging
2006
Handbook on dementia caregiving
2000
Annual Review Of Gerontology And Geriatrics Volume 18, 1998
1999
Adult development and aging
1988
Was nun Esperanto betrifft
1986
Europäische Hochsprache oder Sprachimperialismus?
1979
The Psychology of death, dying, and bereavement
1978
'ne ältere Dame aus Preetz
1977
Mein geliebtes Esperanto =
1976
Deutsche jugend flíege ..
1934
De mythographi Vaticani primi fontibus
1905
