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| All class groups | > | All authors | > | Countries with specific classes (41 - 193) | ||
Argentina
Bangladesh
Bulgaria
Brazil
Belarus
Canada
China
Czech Republic
Germany
Denmark
Estonia
Egypt
Spain
France
Indonesia
Israel
India
Iran
Italy
Mexico
Nigeria
The Netherlands
Norway
Peru
Poland
Portugal
Romania
Serbia
Saudi Arabia
Sweden
Singapore
Slovenia
Thailand
Tunisia
Turkey
Ukraine
United Kingdom
United States
Venezuela
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