MATTHIES, Dietmar. Latest developments in soil physical analysis: the dynamic computer tomography and randou gas diffusion. In Zbornik gozdarstva in lesarstva. ISSN 0351-3114, 1997, č. 54, s. 71-86. Dostupné na internete: <http://eprints.gozdis.si/786/1/Matthies,_54.pdf>