"A.Kitada,Y.Tsujimoto,T.Yamamoto,Y.Kobayashi,Y.Narumi,K.Kindo,A.A.Aczel,G.M.Luke,Y.J.Uemura,Y.Kiuchi,Y.Ueda,K.Yoshimura,Y.Ajiro,H.Kageyama","Quadruple-layered perovskite (CuCl)Ca<sub>2</sub>NaNb<sub>4</sub>O<sub>13</sub>",,,,,,,2011,Oct.