Fritzon, Thorbiörn & Wrigstad, Tobias, red. (2006): (PDF). Stockholm, Sweden. ISBN 91-631-8853-8. ISBN. Bøckman, Petter & Hutchison, Ragnhild, red. (2005): . Knutepunkt . ISBN 82-997102-0-0 (trykk) ISBN 82-997102-1-9 (online) Montola, Markus & Stenros, Jaakko, red. (2004): . Solmukohta. ISBN 952-91-6842-X.