 Aulis Blomstedt was the key figure here, as one of the founding figures of the Museum of Finnish Architecture, professor of architecture theory at Helsinki University of Technology, editor of the main Finnish architecture journal "Arkkitehti" (Finnish Architecture Review), and as a key founding member in 1953 of PTAH (Progrès Téchnique Architecture Helsinki), that is, the Helsinki/Finnish branch of CIAM, he went on to co-found in 1958 "Le Carré Bleu", a journal of architecture theory published originally solely in French (so that it would come to the attention of the key players in CIAM).Already in the PTAH manifesto of 1954, called "Thesis about form", which was sent to the CIAM council in Paris, Blomstedt, as its main author, declared that form and beauty are manifested in proportions and that the doctrine of proportion links mathematics and architecture to a natural whole.Accordingly, the focus of the journal "Le Carré Bleu" was on a strict formalism and morphology.