In 1893, Jovan Cvijić in his "Das Karstphänomen" theorized holo-karst as the type found along the eastern Adriatic Sea, and mero-karst imperfectly developed with some karst forms as the type of karst that is found in eastern Serbia.
== Zgodovina raziskav in zgodnje teorije ==Leta 1689 je Janez Vajkard Valvasor, pionir preučevanje krasa v Sloveniji in član Kraljeve družbe "Royal Society for Improving Natural Knowledge, London", je predstavil besedo kras evropskim znanstvenikom, ko je opisal pojav podzemnih tokov rek na območju Cerkniškega jezera.