https://www.wipo.int/wipolex/en/treaties/textdetails/13058
WIPO Lex, Treaties, Strasbourg Agreement Concerning the International Patent Classification (of...
Date of Text: March 24, 1971
https://www.gov.ie/en/irish-treaty-series/treaty-series/european-agreement-on-the-instruction-and-education-of-nurses-strasbourg-25-october-1967/
European Agreement on the Instruction and Education of Nurses, Strasbourg, 25 October, 1967.