"Conf\u00E9rence sur l'ostr\u00E9iculture."@fr . . . . . . "Conf\u00E9rence sur l'ostr\u00E9iculture."@fr . "Conferentie over oesterkweek."@nl . "Conference on oyster farming."@en . "Vortrag \u00FCber die Austernzucht."@de . "Conferenza sull'allevamento di ostriche."@it . "Conferencia sobre la ostricultura."@es . . . .