He has written several books on the subject of the occupation of Norway by Nazi Germany, including Lurøy-affæren from 1966, Operasjon Oleander from 1968, Når nøden er størst (on POW camps in Trøndelag) from 1969, Sluttspill i Rinnans bandekloster (on Sonderabteilung Lola) from 1971, and Gulltransporten (on the flight of the Norwegian National Treasury) from 1974.
Lola Montez | Lola Cars | Lola | Lola Falana | Run Lola Run | Lola Herrera | Mga Kuwento ni Lola Basyang | Whatever Lola Wants | Lola Mora | Lola Montès | Lola Forner | Sonderabteilung Lola | Lola Gaos | Lola...Érase una vez | Lola Berthet | Charlie and Lola | Whatever Lola Wants (film) | Lola Versus | Lola T70 | Lola Novaković | Lola Maverick Lloyd | Lola Bobesco | Lola Beer Ebner Sculpture Garden | Lola Artôt de Padilla | Lola (1981 film) |