The Free City of Danzig's Problematic Communications with the Holy See and the Establishment of the Apostolic Administration, 1920-1922 - Kansikas, Suvi (. The @Holy See's Foreign Policies in Inter-War Europe. - Helsinki : Suomen Kirkkohistoriallinen Seura, 2016. - 207 Seiten. - Diagramme, Karte. - ISBN 978-952-5031-85-0, 2016)