This chapter will help you understand what "residence" means in Article 1.

For the purposes of this Convention, the term “resident of a Contracting State”
means any person who, under the laws of that State, is liable to tax therein by reason of his domicile, residence, place of management or any other criterion of a similar nature, and also includes that State and any political subdivision or local authority thereof as well as a recognised pension fund of that State. This term, however, does not include any person who is liable to tax in that State in respect only of income from sources in that State or capital situated therein.