Information technologies (InfoTech-2009) : international conference, 17th-20th September 2009, Varna - St. St. Constantine and Elena resort, Bulgaria : proceedings of the first international seminar on security policy (Security-2009) "Modern threats to security and Bulgaria" /

Information technologies (InfoTech-2009) : international conference, 17th-20th September 2009, Varna - St. St. Constantine and Elena resort, Bulgaria : proceedings of the 23rd international conference on systems for automation of engineering and research (SAER-2009) /

Information technologies (InfoTech-2009) : international conference, 17th-20th September 2009, Varna - St. St. Constantine and Elena resort, Bulgaria : proceedings of the 5th international workshop on e-governance and data protection (eG&DP-2009) /

Proceedings of the International conference on information technologies (InfoTech-2011) Bulgaria, Varna 15th-16th September 2011 /

27th international conference on Information technologies (InfoTech-2013) : 19th-20th September 2013, Varna - St. St. Constantine and Elena resort, Bulgaria : proceedings /

Proceedings of the International conference on information technologies (InfoTech-2012) : 26 th Int´I Conference SAER 2012 Bulgaria, 20th - 21th September 2012 /.

Proceedings of the International conference on information technologies (InfoTech-2013) : 27 th Int´I Conference SAER 2013 Bulgaria, 19th - 20th September 2013.

International conference on Information technologies (InfoTech-2011) : 15th-16th September 2011, St. St. Constantine and Elena resort (Varna), Bulgaria : proceedings of the 25th international conference on systems for automation of engineering and research (SAER-2011), 7th international workshop on e-Governance and data protection (eG&DP-2011), 1st international workshop on human-computer interaction and eLearning systems (HCIeLS-2011) : [25th anniversary] /

Varna.

DidInfo 2009 : 15. ročník medzinárodnej konferencie /

International journal on information technologies and security : publication of the Union of Scientists in Bulgaria.

Rýchle informácie. September 2009.

Bulharsko. Varna.

Info-technology /

Infotech : English for computer users. Student´s book /

Bulgária /

Infotech. : English for computer users. Student`s book.

International Exhibition of Information Technologies /

Digital technologies 2009 / 6th International workshop on digital technologies, circuits, systems and signal processing: Žilina, 12.-13. 11. 2009.

Bulgária építészete /