Bibliography
http://en.wikipedia.org/wiki/Cross-country_skiing
http://www.black-forest-travel.com/photo-galleries/winter/cross-country-skiing.html
http://www.google.ca/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&docid=xHbBv7sJWKvnaM&tbnid=z_6IfI3LczG4eM:&ved=0CAUQjRw&url=http%3A%2F%2Fwww.trappfamily.com%2Factivities%2Fcross-country-skiing%2Fhistory&ei=sb77Urm2LuGA2gXM5oHQDg&bvm=bv.61190604,d.b2I&psig=AFQjCNGAKeMABf2RDoBoviyvcNJ_-6gKqw&ust=1392316459559669
http://olympic.ca/sports/skiing-cross-country/
http://www.youtube.com/watch?v=EtxTEgGakY4
http://www.therecord.com/sports-story/4381464-austrian-cross-country-skier-tests-positive-in-fifth-doping-case-at-sochi-olympics/
http://www.thestar.com/sports/sochi2014/skiing/2014/02/11/canadian_coach_lends_helping_hand_to_russian_skier_in_cross_country_skiing_at_sochi_olympics.html
http://www.ctvnews.ca/sochi/russia-sweeps-podium-in-men-s-50k-cross-country-race-1.1699770
http://www.black-forest-travel.com/photo-galleries/winter/cross-country-skiing.html
http://www.google.ca/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&docid=xHbBv7sJWKvnaM&tbnid=z_6IfI3LczG4eM:&ved=0CAUQjRw&url=http%3A%2F%2Fwww.trappfamily.com%2Factivities%2Fcross-country-skiing%2Fhistory&ei=sb77Urm2LuGA2gXM5oHQDg&bvm=bv.61190604,d.b2I&psig=AFQjCNGAKeMABf2RDoBoviyvcNJ_-6gKqw&ust=1392316459559669
http://olympic.ca/sports/skiing-cross-country/
http://www.youtube.com/watch?v=EtxTEgGakY4
http://www.therecord.com/sports-story/4381464-austrian-cross-country-skier-tests-positive-in-fifth-doping-case-at-sochi-olympics/
http://www.thestar.com/sports/sochi2014/skiing/2014/02/11/canadian_coach_lends_helping_hand_to_russian_skier_in_cross_country_skiing_at_sochi_olympics.html
http://www.ctvnews.ca/sochi/russia-sweeps-podium-in-men-s-50k-cross-country-race-1.1699770