@misc{Schou_Erik_(1873–1928)_Nogle_1912, author={Schou, Erik (1873–1928)}, editor={Nielsen, Niels. Ed.}, copyright={Public Domain}, address={Kjøobenhavn}, address={Kristiania}, howpublished={online}, year={1912}, publisher={Gyldendalske Boghandel Nordisk Forlag}, language={dan}, title={Nogle Klasser af harmoniske Funktioner med tre Variable}, type={Text}, URL={http://rcin.org.pl/Content/79953/PDF/WA35_104729_4567_Beretning-13.pdf}, }