This work discusses the problem connected with the method of extraction and segmentation of bibliographic references from scientific texts with regular expressions. Regular expressions are known to be an effective instrument of extracting appropriate words. The problem of precise bibliographic extraction and segmentation is still relevant nowadays. There is a large number of scientific texts where bibliography plays an important role. The way in which people make the bibliography may differ from the standard. Moreover, sometimes it is necessary to extract and divide the reference for better analysis. This method will help to make the process of extraction and segmentation more precise and may become a base of a sophisticated antiplagiarism algorithm.