KÖNIG, Brian - ABILLE, Adamu Braimah. Regional Trade Agreements and Intra-African Trade: Do Colonial Ties Matter? In AIESA - Building of Society Based on Knowledge. International Scientific Conference. "AIESA - BUILDING OF SOCIETY BASED ON KNOWLEDGE" : Proceedings of Abstracts : 21st International Scientific Conference. - Bratislava : Vydavateľstvo EKONÓM, 2024. ISBN 978-80-225-5185-4, p. 20.