Manuel Álvarez Alberto Pan Juan Raposo Fernando Bellas Fidel Cacheda Extracting lists of data records from semi-structured web pages. 491-509 2008 64 Data Knowl. Eng. 2 http://dx.doi.org/10.1016/j.datak.2007.10.002 db/journals/dke/dke64.html#AlvarezPRBC08