1941 EXECUTIONS IN KURESSAARE CASTLE(PDF). Singing Revolution. Saarte Hääl Newspaper (“Voice of the Islands”). 1988-09-13 [2020-06-26]. (原始内容存档(PDF)于2020-08-29).
1941 EXECUTIONS IN KURESSAARE CASTLE(PDF). Singing Revolution. Saarte Hääl Newspaper (“Voice of the Islands”). 1988-09-13 [2020-06-26]. (原始内容存档(PDF)于2020-08-29).