Печатный источник:Diarium itineris in Moscoviam. Vienna, Leopoldi Voight .
[“Map of vicinity of Azov ”] P. 244
Korb was secretary to the Baron de Guarient, ambassador from Emperor Leopold I to Czar Peter the Great in 1699. This map, and other more detailed plans which accompany it portray waterways and military installations at and around the city of Azov.
WEB-источник:University of Minnesota, Twin Cities