AND代表"并且";OR代表"或者";NOT代表"不包含" (注意必须大写,运算符两边需空一格)
范例一:( IKTE=图书馆学 OR IKST=情报学) AND IKCR=范并思
范例二:IKTS=计算机应用与软件 AND (IKST=C++ OR IKST=Basic) NOT IKIS=西华师范大学
Correction to: The work of the Konrad-Adenauer-Stiftung (KAS) in Northeast Asia Stefan Samse;Rabea Brauer;Alexander Badenheim;Peter Hefele;David Merkle (1-2)
Correction to: The work of the Konrad-Adenauer-Stiftung (KAS) in Northeast Asia Stefan Samse;Rabea Brauer;Alexander Badenheim;Peter Hefele;David Merkle 2020年月