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Meilensteine der Menschheit
Bibliographisches Institut & F. A. Brockhaus AG
Datenbank-Infosystem (DBIS)
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Eighteenth Century Collections Online
Gale Cengage Learning
Datenbank-Infosystem (DBIS)
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Nineteenth Century Collections Online: Science, Technology and Medicine ; 1780-1925
Gale
Datenbank-Infosystem (DBIS)
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Internet Library of Early Journals : A Digital Library of 18th and 19th Century Journals
Universities of Birmingham, Leeds, Manchester and Oxford
Datenbank-Infosystem (DBIS)
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Eighteenth Century Collections Online
Gale Cengage Learning
Datenbank-Infosystem (DBIS)
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Globes de Louis XIV, Les
Montparnasse multimedia
Datenbank-Infosystem (DBIS)