Local GNSS Threat Detection Methods for Virtual Balise Placement in Railway Applications. - Omar García Crespillo; Andriy Konovaltsev; Juliette Marais; Salvatore Sabina; Alessia Vennarini; Andrea Coluccia; Alessandro Neri 001; Antonio Aguila; Elena Razzano; Francesco Ranauro; Massimiliano Ciaffi (ITST, 2018)