LEGO 7019 Viking Fortress Against the Fafnir Dragon Set Parts Inventory and Instructions - LEGO Reference Guide
Brick It - Lego Vikings 7019 Viking Fortress against the Fafnir Dragon - YouTube
LEGO Vikings: Viking Fortress 7019 (2005) Very Rare. | eBay
LEGO Minifigure vik014 Viking Warrior - 7019 - Light Bluish Gray Head Balaclava with Face Hole, Chain Mail, Brown Beard and Eyebrows, Gritted Teeth, White Pupils Pattern | iBricktoys: LEGO shop guide and database