Although communication between students and the teaching staff will take place preferably on-line, an extra resource for tutorials and guidance will be provided by the traditional system of academic service practiced by UNED. In this regard, Dr. Marcin Roman Czubala will be on duty on Wednesdays from 10 a.m. to 14 p.m. (Telephone: +34 91 398 93 42). Students can also send their e-mails to mczubala@cee.uned.es at any time.