Tori Põrgu ("Tori hell")Meidla, Tõnu; Männik, PeepXI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 141-144 : ill https://www.ester.ee/record=b5696260*est https://files.geocollections.info/07daf3f6-3a35-49c2-9996-f36b2e93d350.pdf