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Nineteenth Century Collections Online: Science, Technology and Medicine ; 1780-1925
Gale
Datenbank-Infosystem (DBIS)
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Eighteenth Century Collections Online
Datenbank-Infosystem (DBIS)
-
Eighteenth Century Collections Online
Gale Group
Datenbank-Infosystem (DBIS)
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geschichtsspuren.de
Datenbank-Infosystem (DBIS)
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WBG eBooks
WBG
Datenbank-Infosystem (DBIS)
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Scopus
Elsevier
Datenbank-Infosystem (DBIS)