%0 Journal Article
%T Two-square Theorems for Infinite Matrices on Certain Fields<br>
%J 科学通报(英文版)
%D 1993
%I 
%K infinite matrix
%K model theory<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=AA614C49DAEC1AB0507739057BD659F8&yid=D418FDC97F7C2EBA&vid=16D8618C6164A3ED&iid=B31275AF3241DB2D&sid=5319469C819FCFF1&eid=5319469C819FCFF1&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0