title: Giant dielectric anomaly of a metal-organic perovskite with four-membered ring ammonium cations.
authors: Department of Chemistry, College of Humanities and Sciences, Nihon University, Tokyo, Japan.
authors: Biao
authors: B
authors: Zhou
authors: Yuji
authors: Y
authors: Imai
authors: Akiko
authors: A
authors: Kobayashi
authors: Zhe-Ming
authors: ZM
authors: Wang
authors: Hayao
authors: H
authors: Kobayashi