Source: Terttu Härkönen and Paula Kivinen (Text),
Juhani Riekkola (Fotos), and Antti Jokela (Layout):
Die Domkirche zu Tampere. Hämeen Kirjapaino oy 1990.
Kindly supplied by Mrs. Sirkka-Liisa Helin
The Church Information Centre
The Evangelical Churches, Tampere