2003

Giatsis, G. (2003, March 20). Beach volleyball fundamentals. Paper presented at the meeting of the Arsakio High School, Thessaloniki, Greece.

2002
Giatsis, G. (2002, November 16-17). Rules changes affecting beach volleyball game in technique and tactic. Paper presented at the 1st Physical Training Seminar of Team Sports of the Northern Greece Physical Education Teachers Association, Thessaloniki, Greece.

2001

Giatsis, G. (2001, January 22). Beach volleyball fundamentals. Paper presented at the meeting of the Hellenic Volleyball Coaches Association, Thessaloniki, Greece.

Giatsis, G. (2001, January 12). Influence of rules changing to the beach volley players. Paper presented at the Beach Volleyball Training Seminar of the University of Thessalia, Department of Physical Education.& Sports Science and of the Hellenic Volleyball Federation, Trikala, Greece.

Giatsis, G. (2001). Jumping quality and quantitative analysis of beach volleyball game. Paper presented at the Beach Volleyball Training Seminar of the Aristotle University of Thessaloniki, Department of Physical Education.& Sports Science and of the Hellenic Volleyball Federation, Thessaloniki, Greece.

Giatsis, G. (2001, July 9-23). Beach volleyball technique and tactic. Paper presented at the Volleyball Coaching School (B' Level) of the General Sports Secretariat, Thessaloniki, Greece.

2000

Giatsis, G. (2000, May 13). Influence of rules changing to the beach volleyball referees. Paper presented at the National Referees' Annual Training Seminar, Athens, Greece.

Giatsis, G. (2000, July 4-17). Beach volleyball fundamentals. Paper presented at the Volleyball Coaching School (C' Level) of the General Sports Secretariat, Thessaloniki, Greece.