International Jubilee Scientific Conference “75 years UACG“, 1-3 November 2017, Sofia, BULGARIA
https://1drv.ms/b/c/b9f980bbcaa2448f/IQBUhXlVz02oQofuSHndJ3GcAQdhy-DdWjmz9xDJiYhRyKs?e=o0iVan
International Jubilee Scientific Conference “75 years UACG“, 1-3 November 2017, Sofia, BULGARIA
https://1drv.ms/b/c/b9f980bbcaa2448f/IQBUhXlVz02oQofuSHndJ3GcAQdhy-DdWjmz9xDJiYhRyKs?e=o0iVan