See:BIOLOGISKE MEDDELELSER See:BIOLOGISKE SKRIFTER See Also: BOOKS database under: Bergh, Rudolph - for 5te raekke, part of v.3 under: Lynge, Herman - for 7. raekke, afd. v.3 [both from BIOLOGISKE SKRIFTER] under: Sorensen, William - for 9. raekke v.3, no.4
