Hannum, Hurst. Agreement between Sweden and Finland Relating to Guarantees in the Law of 7 May 1920 on the Autonomy of the Aaland Islands. Basic Documents on Autonomy and Minority Rights. Martinus Nijhoff Publishers. 1993: 141 [2020-12-20]. ISBN 0-7923-1977-X. (原始内容存档于2021-01-03) (英语).
Hannum, Hurst. Agreement between Sweden and Finland Relating to Guarantees in the Law of 7 May 1920 on the Autonomy of the Aaland Islands. Basic Documents on Autonomy and Minority Rights. Martinus Nijhoff Publishers. 1993: 141 [2020-12-20]. ISBN 0-7923-1977-X. (原始内容存档于2021-01-03) (英语).