https://www.politeianet.gr/books/9789604358038-diop-david-polis-i-puli-tou-taxidiou-choris-epistrofi-353605?gclid=EAIaIQobChMIw_zBn427gAMVmlXCCh3NmQ7MEAEYASADEgJ0xPD_BwE