Institution: The Swiss National Library OR Institution: National Library of Estonia OR Institution: National Library of Technology (Czech Republic) OR Institution: Moravian Library in Brno OR Institution: Library of the Academy of Sciences of the Czech Republic OR Institution: The Royal Library, the National Library and Copenhagen University Library OR Institution: University Library of Regensburg OR Institution: University and Regional Library of Tyrol OR Institution: Vienna University Library OR Institution: Research Library Olomouc OR Institution: University Library in Bratislava Author: Voltaire 1694-1778 Author: Cayrol, Louis-Nicolas-Jean-Joachim de