%0 Journal Article %T GENERALIZED DERIVATIONS WITH CLOSED RANGES (Ⅰ) %J 科学通报(英文版) %D 1988 %I %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=02087A2519F06DCEF27D8F3C91164FD4&yid=0702FE8EC3581E51&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=8C044EC256B1039D&eid=8C044EC256B1039D&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0