Spoken Conversational Search for General Knowledge. - Lina Maria Rojas-Barahona; Pascal Bellec; Benoit Besset; Martinho Dos-Santos; Johannes Heinecke; Munshi Asadullah; Olivier Le Blouch; Jean Y. Lancien; Géraldine Damnati; Emmanuel Mory; Frédéric Herledan (SIGdial, 2019)