WINKELBAUER, Jennifer. Methods of surveying the thickness of humous horizons using ground penetrating radar (GPR): an example from the Garmisch-Partenkirchen area of the Northern Alps. In European Journal of Forest Research. - Berlin : Springer - Verlag, 2011. ISSN 1612-4669, 2011, vol. 130, no. 5, s. 799-812.