@incollection{weko_5881_1, author = "Fu,Desheng and Itoh,Mitsuru", title = "Ferroelectricity in Silver Perovskite Oxides", booktitle = "Ferroelectrics - Material Aspects", publisher = "Intech", year = "2011", volume = "", number = "", pages = "413--442", month = "aug" }