ARTICLE 19
Teachers and Researchers
An individual who is a resident of a Contracting State immediately before making a visit to the other Contracting State and who, at the invitation of any university, college, school or other similar educational institution or scientific research institution visits that other Contracting State for a period not exceeding two years solely for the purpose of teaching or research or both at such educational or research institution shall be exempt from tax in that other State on any remuneration derived from such teaching or research.