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Discover Trail-Running—ITRAhttps://itra.run/page/259/Definition_of_trail-running.html
Krein, K. J. (2013). Nature Sports. Journal of the Philosophy of Sport, 41(2), 193-208. doi:10.1080/00948705.2013.785417
Characterising sport tourists based on motivation–the case of the SachsenTrail 2017 (Germany)https://www.researchgate.net/profile/Alexander_Hodeck/publication/326266142_Comparing_two_types_of_nature_sport_event_tourists_in_Germany_based_on_travel_motivation_and_behavior-_the_case_of_ski_tourers_vs_trail_runners/links/5bcf0fec92851c1816ba7a48/Comparing-two-types-of-nature-sport-event-tourists-in-Germany-based-on-travel-motivation-and-behavior-the-case-of-ski-tourers-vs-trail-runners.pdf
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Quiénes somos • Fundación Trinidad Alfonso—Fund. Trinidad Alfonsohttps://fundaciontrinidadalfonso.org/quienes-somos/
Penyagolosa Trails 115Khttp://www.timothyallenolson.com/2017/05/12/penyagolosa/
Looking forward to reaching this cross. Tonight we embark on @PenyagolosaTr - buena suerte! May you all have an incredible day#runmindfulpic.twitter.com/BkjZwCKrGD. @timmyolson_run 2017T13:05
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El Penyagolosa Trails dejará en el interior de Castellón un millón de euros en un fin de semanahttps://castellonplaza.com/el-penyagolosa-trails-dejara-en-el-interior-de-castellon-un-millon-de-euros-en-un-fin-de-semana
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