Zdroje :
https://mapserver.geology.sk/hydrogeol/
www.arcgis.com/home/webmap/viewer.html?webmap=30b899ac98974392950cebe9597f6fa6
mapserver.geology.sk/hydrogeol/
www.sopsr.sk/nppoloniny/sk/starina.php
sk.wikipedia.org/wiki/Zempl%C3%ADnska_%C5%A1%C3%ADrava
www.slovakiatrip.sk/destinacie/Hrhovske-rybniky?oid=7075 www.seas.sk/sk/elektrarne/typy-elektrarni/vodne/cierny-vah
sk.wikipedia.org/wiki/Palcmansk%C3%A1_Ma%C5%A1a_%28vodn%C3%A1_n%C3%A1dr%C5%BE%29
sk.wikipedia.org/wiki/Liptovsk%C3%A1_Mara_%28priehrada%29