Csizmarik, G., F. Ligetvári, C. Juhász, and P. Simándi. “Monitoring the Oxygen Level in the Szarvas-Kákafok Deadarm”. Acta Agraria Debreceniensis, no. I, Oct. 2010, pp. 170-3, doi:10.34101/ACTAAGRAR/I/8397.