Charlotte Ashby, "The Pohjola building: reconciling contradictions in Finnish architecture around 1900", in Nationalism and Architecture, ed. Raymond Quek and Darren Deane with Sarah Butler, Ashgate Studies in Architecture, Farnham, Surrey / Burlington, Vermont: Ashgate, 2012, ISBN9781409433859, pp. 135–46, pp. 138, 140.
Jeremy Howard, (1996). Art Nouveau: International and National Styles in Europe, Manchester / New York: Manchester University, 1996, ISBN9780719041600, p. 177.
Edward R. Ford, The Details of Modern Architecture, 2 vols., Volume 2 1928–1988, Cambridge, Massachusetts: MIT, 2003, ISBN9780262562027, p. 27.
Pekka Korvenmaa, tr. Jüri Kokkonen, Innovation Versus Tradition: The Architect Lars Sonck: Works and Projects, 1900–1910, Suomen Muinaismuistoyhdistyksen aikakauskirja 96, Helsinki: [Suomen Muinaismuistoyhdistys], 1991, ISBN9789519056999, p. 108.
Jacek Purchla and Wolf Tegethoff, eds., Comité international d'histoire de l'art, Nation, Style, Modernism, Proceedings of the international conference under the patronage of Comité International d'Histoire de l'Art (CIHA), organized by the Zentralinstitut für Kunstgeschichte, Munich, and the International Cultural Centre, Cracow 6 – 12 September, 2003, CIHA conference papers 1, Cracow: International Cultural Centre / Munich: Zentralinstitut für Kunstgeschichte, 2006, ISBN9788389273369, p. 115.
Cited in Esko Järventaus, "Rakennustaide ja tekniikka", Suomen rakennushallinto 1811–1961, Helsinki: Rakennushallitus, 1967, OCLC492537780, pp. 405–06, quoted in translation Moorhouse, Carapetian and Ahtola-Moorhouse, p. 108.