|  |  | A cross-staff from the wreck of the Kronan (1676) | Analytt | q930.26:626.02(05) I Einarsson, Lars / I: The International Journal of Nautical Archaeology.  - Vol.52, No.1, 2003 - London, 2003. - s.53-60
 | Einarsson, Lars | 2003 | 
				|  |  | Navigasjonsinstrumenter | Emneord | [Emneord] |  |  | 
				|  |  | The cross staff : historical development and moden use | Bok | Små. 629.12.05 S Stimson, Alan Neale /  - London : Harriet Wynter, 1977. - 26 s.
 | Stimson, Alan Neale | 1977 | 
				|  |  | The cross-staff : history and development of a navigational instrument | Analytt | 069.5(492)(058) Nederlandsch Historisch Scheepvaart Museum Bruyns, W.F.J. Mörzer / I: Nederlandsch Historisch Scheepvaart Museum. Jaarboek. , 1994 - Amsterdam, 1994. - 127 s.
 | Bruyns, W.F.J. Mörzer | 1994 | 
				|  |  | The Cross-Staff | Analytt | 069.5(492)(058) Nederlandsch Historisch Scheepvaart Museum Bruyns, W.F.J. Mörzer / I: Nederlandsch Historisch Scheepvaart Museum. Jaarboek. , 1994 - Amsterdam, 1994. - 127 sider
 | Bruyns, W.F.J. Mörzer | 1994 | 
				|  |  | The cross-staff : history and development of a navigational instrument | Bok | 069.5(492)(058) Nederlandsch Historisch Scheepvaart Museum Bruyns, W.F.J. Mörzer / I: Nederlandsch Historisch Scheepvaart Museum. Jaarboek 1994. , 1994 - Amsterdam, 1994. - 127 s.
 | Bruyns, W.F.J. Mörzer | 1994 |