...
Fig. 2. Detail from the collation of the manuscript AM 619 4to (from Haugen and Ommundsen 2010, 251). This diagram shows four of the quires, V–VIII, each being a quaternio of 8 folios or 4 double folios (bifolia). In quire VII, two leaves are missing and indicated by dotted lines. Note that lost folios usually are not numbered, so that in quire VII, there will be only six numbered folios.
...
References
– Haugen, Odd Einar, and Åslaug Ommundsen, eds. 2010. Vår eldste bok. Bibliotheca Nordica, vol. 3. Oslo: Novus.
– Roberts, Colin H., and Theodore C. Skeat. 1983. The Birth of the Codex. London: Oxford University Press.
...