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Remote Sensing | Free Full-Text | Searching for Viking Age Fortresses with Automatic Landscape Classification and Feature Detection
![Uppsala, Sweden. 29th May, 2021. Hanna Persson (14 Uppsala) battle for the ball with Sandra Welander (12 Borgeby) during the Elitettan game between IK Uppsala and Borgeby FK at Studenternas IP in Uppsala, Sweden. 29th May, 2021. Hanna Persson (14 Uppsala) battle for the ball with Sandra Welander (12 Borgeby) during the Elitettan game between IK Uppsala and Borgeby FK at Studenternas IP in](https://c8.alamy.com/comp/2FYP43K/uppsala-sweden-29th-may-2021-hanna-persson-14-uppsala-battle-for-the-ball-with-sandra-welander-12-borgeby-during-the-elitettan-game-between-ik-uppsala-and-borgeby-fk-at-studenternas-ip-in-uppsala-sweden-credit-spp-sport-press-photo-alamy-live-news-2FYP43K.jpg)
Uppsala, Sweden. 29th May, 2021. Hanna Persson (14 Uppsala) battle for the ball with Sandra Welander (12 Borgeby) during the Elitettan game between IK Uppsala and Borgeby FK at Studenternas IP in
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