ARTICLE 20
Teachers and Students
(1) Any remuneration paid to professors and other teachers who are residents of a Contracting State and who are temporarily present in the other Contracting State for the purpose of teaching or carrying on scientific research at a university or other non-profit educational or research institution in that State for a period not exceeding two years shall be taxable only in the first-mentioned State.
(2) Payments which a student, apprentice or business trainee who is or was formerly a resident of a Contracting State and who is present in the other Contracting State solely for the purpose of his education or training receives for the purpose of his maintenance, education or training shall not be taxed in that other State, provided that such payments are made to him from sources outside that other State.