Feasibility of using a smart unobtrusive wearable system for the autonomic characterisation of endurance trail runners. - Alessandro Tonacci; Francesco Sansone; Roberta La Spina; Lucia Billeci; Claudio Domenici; Raffaele Conte; Lorenza Pratali; Simona Mrakic-Sposta; Guido Giardini (ICCE-Berlin, 2017)