https://www.georgehotos.gr/wp-content/uploads/2017/10/HOTOS-MASTER-THESIS-1984-yellow-COMPACT-pdf.jpg Master Thesis, Mie University, Japan, 1984
HOTOS-PHD-THESIS-1999-COMPACT. Doctorate thesis, Patras University, Greece, 1999.
https://www.georgehotos.gr/wp-content/uploads/2017/10/HOTOS-MASTER-THESIS-1984-yellow-COMPACT-pdf.jpg Master Thesis, Mie University, Japan, 1984
HOTOS-PHD-THESIS-1999-COMPACT. Doctorate thesis, Patras University, Greece, 1999.