APA

Racev B., International Conf. on Computer Systems and Technologies ( e-Learning) CompSysTech, . (2002). Proceedings of the International Conference on Computer Systems and Technologies ( e-Learning) CompSysTech 2002, Sofia, 20-21 June 2002. : Съюз по автоматика и информатика.

Chicago

Racev Boris, International Conf. on Computer Systems and Technologies ( e-Learning) CompSysTech, . 2002. Proceedings of the International Conference on Computer Systems and Technologies ( e-Learning) CompSysTech 2002, Sofia, 20-21 June 2002. : Съюз по автоматика и информатика.

Harvard

Racev B., International Conf. on Computer Systems and Technologies ( e-Learning) CompSysTech, . (2002). Proceedings of the International Conference on Computer Systems and Technologies ( e-Learning) CompSysTech 2002, Sofia, 20-21 June 2002. : Съюз по автоматика и информатика.

MLA

Racev Boris, International Conf. on Computer Systems and Technologies ( e-Learning) CompSysTech, . Proceedings of the International Conference on Computer Systems and Technologies ( e-Learning) CompSysTech 2002, Sofia, 20-21 June 2002. : Съюз по автоматика и информатика. 2002.