Grigalis, T., L. Marozas, and L. Radvilavičius. “Analysis of Automated Modern Web Crawling and Testing Tools and Their Possible Employment for Information Extraction”. Mokslas – Lietuvos Ateitis / Science – Future of Lithuania, vol. 4, no. 1, Apr. 2012, pp. 31-34, doi:10.3846/mla.2012.07.