Chrysophyte AlgaeJorgen Kristiansen, Craig D. Sandgren, J. P. Smol · First published 1995Open the Tome
Europe in the First Millennium B. C.Kristian Kristiansen, Jorgen Jensen · First published 1994Open the Tome
Rosenborg Place Official GuideJorgen, and Kristiansen, Peter Hein · First published 1994Open the Tome
