https://www.huffingtonpost.gr/news/epnos/

https://www.youtube.com/watch?v=cJVL0RKwD7o

https://www.geogebra.org/m/rzcbuuka

https://www.news247.gr/sunday-edition/mpoylingk-sta-scholeia-to-ypoyrgeio-dimioyrgei-provlimata-anti-na-ta-lynei.9975723.html

https://www.capital.gr/health/3704414/kalos-upnos-aparaititos-gia-to-anosopoiitiko-kai-ton-elegxo-tou-barous
https://www.skai.gr/news/health/sovares-epiptoseis-apo-tin-meiosi-kata-dyo-ores-tis-mesis-diarkeia-ypnou-sto-dytiko-kosmo

https://www.alfavita.gr/ekpaideysi/410474_ta-paidia-simera-ehoyn-mikroteri-diarkeia-sygkentrosis-o-psifiakos-kai-o