Semikolennykh, Andrew A., Anna A. Rahleeva, and Tatjana B. Poputnikova. 2012. “Spent Carbide Waste Retains Toxicity Long Term After Disposal in Caves and Mines”. Acta Carsologica 41 (1). Ljubljana, Slovenija. https://doi.org/10.3986/ac.v41i1.53.