Complex sentence: The Centre for International Studies At the Université de Montréal, known as Cérium, is a research centre whose specialisation is international studies and which is linked to the Université de Montréal.
Split into simpler sentences: The Centre for International Studies at the Université de Montréal, known as Cérium, is a research centre which specialization is international studies. The CÉRIUM is linked to the Université de Montréal.