The so-called retrieval, is to search. Retrieval literature material, is the collection of data from the literature, to select the useful literature. However, from the vast multitude of literature Accurately and quickly in the literature material is not easy. It demands that we do not pay attention to retrieval method.
Retrieval tools choice: retrieval books can visit to see the "catalog of collection books, computer and manual retrieval points in two ways; Newspaper articles can be retrieval periodicals made Visit the national newspapers &periodicals (points the philosophy and social science edition and natural science edition, by Shanghai library association), the Chinese people's university photocopy project material and the index of issue Every year on the first period or the end of the year, and assembly "directory indexed some abstract publications such as the national college of liberal arts abstract", "abstract" higher education, can As a search in the literature of the tools.
Retrieval method using literature retrieval method: the very much, but the commonly used nothing more than the following kinds:
The method is: from the initial check the s, through the relevant retrieval tools, a year a year to recent check. This far and near, and by ZhuiGenXunYuan like the method of searching for, Especially suitable for theoretical and academic search of the literature. Defect is drilling wastes time workers, not very high retrieval efficiency.
Pour check method: namely the distance, first check of the year after year after year forward, literature search. Lookup, need not a year to find, as long as the check at the end of the literature It is enough. So find time efficient literature. But with the check method, this method than get is not comprehensive literature, there may be a missing useful literature.
Trace method: this is a kind of to the author of the article after article in the enclosed reference basis for tracking search method. This method have work or retrieval Retrieval work is not complete, it can get some necessary of the literature.
The above methods, in specific, often is mixed in the use of the alternate use. Among them, especially before both down check method top utilization rate.
Retrieval of literature search steps: clear purpose and requirements-choice of retrieval tools--identify approach and a method for-according to the literature retrieval, refer to the original documents.