EN
The Electronic Periodicals Archives & Database (EPA, http://www.epa.hu/) is an online inventory service launched in 2004 aimed at creating a registry and a bibliographic database of Hungarian online continuing resources. Its other task is to build and maintain a full-text digital periodicals archive. With the introduction of the service, we would also like to highlight some theoretical and practical problems that arose during the development of the EPA and working with e-periodicals in general.