Cross-country skiing (sport) - Wikipedia

German cross-country skier Dotzler retires at age of 27

Ski jumping - Winter sports pictograms, Cross-country skiing - Winter sports pictograms, Alpine skiing, paralympic - Winter sports pictograms

Benjamin Moser, Olympics Wiki

John Kristian Dahl - Wikiwand

Viktor Thorn (cross-country skier) - Wikiwand

Tero Similä - Wikiwand

File:Russian Cross-Country Skiing and Biathlon athletes in Sochi.jpeg - Wikimedia Commons

Emma Ribom - Wikiwand

Silly Season: Kati Roivas Joins Team Næringsbanken – Ski Classics

Rebecca Rorabaugh - Wikidata

Franco Nones - Wikiwand

Cross-country skiing (sport) - Wikipedia

Priit Narusk - Tour de Ski Parha 2008

File:Marcialonga 2011 at Lago di Tesero Cross-Country Ski Stadium 03.jpg - Wikimedia Commons