%0 Journal Article
%T ON APPROXIMATE FORMULAS FOR CALCULATING CRITICAL DEPTH OF TRAPEZOIDAL CHANNELS<br>
%J 科学通报(英文版)
%D 1981
%I 
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=91EFBA16FA94B522EE2F28D00C4781CE&yid=AA64127AB7DEB65D&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&sid=014B591DF029732F&eid=014B591DF029732F&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0