Friedrich Ringleb has written:
'Numerical and graphical method of conformal representation'
Friedrich Klages has written: 'Chemie'
Friedrich Bechmann has written: 'Jacobis \\'
Friedrich Barthel has written: 'Erdepfelblumme'
Friedrich Schurr has written: 'Cervantes'
Friedrich Krapf has written: 'ALTBACH'
Friedrich Martin Seitz has written: 'Friedrich Martin Seitz'
Friedrich von Sallet has written: 'Friedrich von Sallet'
Friedrich Meckseper has written: 'Friedrich Meckseper' -- subject(s): Exhibitions
Friedrich Schreyvogel has written: 'Das Burgtheater'
Friedrich Hustedt has written: 'Bacillariophyta (Diatomeae)'
Friedrich Barth has written: 'Die Dampfmaschinen'
H. Friedrich has written: 'Chaos in Atoms'