Friedrich Heer has written:
'Europe, mother of revolutions' -- subject(s): Intellectual
life, Nineteenth century
'The medieval world, Europe, 1100-1350' -- subject(s):
Civilization, Medieval, Medieval Civilization
'Mittelalter' -- subject(s): History, Middle Ages
'Europa ische Geistesgeschichte'
'Europa, Mutter der Revolutionen'
'The intellectual history of Europe'
'Der Glaube des Adolf Hitler'