Current cave monitoring practices, their variation and recommendations for future improvement in Europe: A synopsis from the 6th EuroSpeleo Protection Symposium oleh Alexander Weigand, Szilárd-Lehel Bücs, Stanimira Deleva, Lada Lukić Bilela, Pierrette Nyssen, Kaloust Paragamian, Axel Ssymank, Hannah Weigand, Valerija Zakšek, Maja Zagmajster, Gergely Balázs, Shalva Barjadze, Katharina Bürger, William Burn, Didier Cailhol, Amélie Decrolière, Ferdinando Didonna, Azdren Doli, Tvrtko Drazina, Joerg Dreybrodt, Lana Ðud, Csaba Egri, Markus Erhard, Sašo Finžgar, Dominik Fröhlich, Grant Gartrell, Suren Gazaryan, Michel Georges, Jean-Francois Godeau, Ralf Grunewald, John Gunn, Jeff Hajenga, Peter Hofmann, Lee Knight, Hannes Köble, Nikolina Kuharic, Christian Lüthi, Cristian Munteanu, Rudjer Novak, Dainis Ozols, Matija Petkovic, Fabio Stoch, Bärbel Vogel, Ines Vukovic, Meredith Hall Weberg, Christian Zaenker, Stefan Zaenker, Ute Feit, Jean-Claude Thies