1] OCT. 1982

SCIENTIFIC PUBLICATION OF THE SOCIETY OF ELECTRICALAND MECHANICAL ENGINEERSENERGY CONSERVATION P.C. STEFANIDES article,

Pages 114-117

2] 20-22 OCT.1982 Proceedings of the FIRST NATIONAL CONFERENCE ON"PASSIVE SOURCES OF ENERGY", Abstracts of Interventions, P.C. STEFANIDES, Page 143

3] 6-8 NOV. 1985

SECOND NATIONAL CONFERENCE ON "PASSIVE ENERGY SOURCES" (Institute of Solar Technology) University of Thessaloniki, P.C. STEFANIDES, Paper in Volume (A), Pages 389 - 396

4] 13-17 SEPT. 1987, T.E.I PATRAS CONFERENCE, APPLICATIONS OF

SOLAR ENERGY. P.C. STEFANIDES - PAPER IN COFERENCE PROCEEDINGS.

5] FIRST NATIONAL SYMPOSIUM OF AUTOMATIC CONTROL AND ROBOTICS ORGANIZED BY THE TECHNICAL CHAMBER OF GREECE 16 - 18 DEC. 1987, AT THE EYGENIDION INSTITUTE, ATHENS. P.C.STEFANIDES - PAPERINVOLUMEIIOFCONFERENCE PROCEEDINGS

6] PRESENTATION OF PROTOTYPE WORK AT THE FIRST PANHELLENIC CONFERENCE ON THE HISTORY AND PHILOSOPHY OF ANCIENT GREEK MATHEMATICS, ORGANIZED BY THE MATHEMATICAL SOCIETY OF GREECE (2-3-4 MARCH 1989) AT THE NATIONAL RESEARCH INSTITUTE, (ANNIVERSARY OF 2200 FROM ARCHIMIDES).WORK SUBJECT: THE MOST BEAUTIFUL TRIANGLE: PLATOS - TIMAEUS (PLATONIC SOLIDS - POLYEDRA)

7] PRESENTATION OF A PAPER ON THE PLATONIC SOLIDS (GEOMETRY RELATED TO ARTS), AFTER INVITATION, AT THE "DEMOKRITIAN" UNIVERSITY OF XANTHI - NOV 1991.

8] SENSORS 93 - TECHNICAL CHAMBER OF GREECE 28-5-93 PAPER ON "SENSORS OF A HELIOTROPIC TRACKING SYSTEM" - HAI APPLICATION. P.C. STEFANIDES - PAPER IN COFERENCE PROCEEDINGS...PAGE 4