Shrader T.A. Across the Borders: the Pomor Trade

[qwercus]

The history of the Pomor trade in Norway and textology of the Pomor pilot instructions (lotsiyas) of XVIII-XIX centuries.

very interesting

http://qwercus.narod.ru/schrader_2005.htm

по-русски, примерно о том же самом:
http://qwercus.narod.ru/schrader_2002.htm