Andriichuk V. I. (1992). About the Teyt-Shafarevich product in elliptical curves over pseudolocal fields with remainder fields of the characteristics 3 . Ukrains’kyi Matematychnyi Zhurnal, 44(9), 1157-1165. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/8163