Tomas Lanczos in the Juliana Cave on Mount Chimanta, Venezuela in 2009

Tomáš Lánczos in Bear Cave, Vrátna dolina in 2020

Tomáš Lánczos on Roraima Mountain with Nela Filipčíková and Kamila Hrúzová, doctoral students at the time. At Punto Triple - a meeting between the borders of Venezuela, Guyana and Brazil

Tomáš Lánczos at the World Speleological Congress in Sydney in 2017

Tomáš Lánczos during sampling in the Cave of Dezider Horváth

Tomáš Lánczos as a university teacher in class

Tomáš Lánczos (second from left) and members of the Slovak-Czech scientific-speleological expedition to the Akopán mesa with the people of the Pemón, Yunek, and Gran Sabana tribes, Venezuela in 2015

Tomáš Lánczos (right) and a meeting of Grammar School graduates with Hungarian as the language of instruction (class of 1984) in 2019

Geochemist Tomáš Lánczos

Karol Jurcovic, historical photograph

Karol Jurcovic during service in PTP

Karol Jurcovic during service in PTP

Karol Jurcovic, current photograph

Karol Jurcovic, current photograph

Karol Jurcovic during PTP service, Karol Jurcovic in the upper middle

Karol Jurcovic during the period of service for PTP

Karol Jurcovic (4th from the left)

Karol Jurcovic

Radovan Kaplan during the concert

Radovan Kaplan with his parents

Witness - Radovan Kaplan

Radovan Kaplan as a child

Witness - Radovan Kaplan

Radovan Kaplan posing with guitar

Witness - Radovan Kaplan