Naturalists Rudyard n. Propst Award from Clubhouse International Odvar Nordli "Brundtland, Gro Harlem (Norway)", The Statesman’s Yearbook Companion: The
(in Norwegian). p. 28. Olsen, Morten (7 April 1989). "Fire fra Buskerud på u/16-samling". Fremtiden (in Norwegian). Nordli, Øyvind (20 September 1993).