Krepšelis apskritai Oklandas polar navigation Įspūdinga gyvybingumas Priešais
Electronic Navigation System based on the use of Alternate Coordinate System and Polar Stereographic Projection for UAVs operating in Polar Regions | Madridge Publishers
Franklin : Tragic Hero of Polar Navigation, Paperback by Lambert, Andrew, Lik... 9780571231614 | eBay