Reasons to climb K2 from the north side. | expedreview.com
Extreme Self-Care: Expedition Style - Alpine Ascents International
Kazakhs Climb K2's North Ridge - Climbing
NI climber abandons K2 summit attempt - BBC News
Northmen PK Twitterren: "unclimbed lines on #K2: north line (climbed up to 8000m by Denis Urubko) east face, never attempted. http://t.co/33ZyEeQZET" / Twitter
History of successful K2 North Ridge attempts | K2 Blog
THE NORTH RIDGE ROUTE – FEEDING THE RAT EXPEDITIONS