R. Janssen has written:
'De Maaseiker historiografie' -- subject(s): Historiography
Bart Janssen has written: 'Een losse draad'
M J. Janssen has written: 'Organosulfur chemistry'
Floor Janssen has written: 'Hamas and its positions towards Israel'
Jac Janssen has written: 'Catalogue of Late Ramesside Letters'
Mary Beth Janssen has written: 'Naturally Healthy Hair'
Marielouise Janssen-Jurreit has written: 'Der Antrag' 'Sexism'
Johannes Janssen has written: 'An meine kritiker' -- subject(s): Reformation
Claes Janssen has written: 'Censurattityder' -- subject(s): Censorship, Motion pictures
Albrecht Janssen has written: 'Die frauen rings um Friedrich Hebbel'
Jan Janssen has written: 'High-tech etc' -- subject(s): Architecture
Tom Janssen has written: 'Lichter der Grossstadt' -- subject(s): Urban renewal
T. Janssen has written: 'Crystallographic groups' -- subject(s): Group theory, Mathematical Crystallography