1. Thermal properties of soils;De Vries,1963
2. The block-method for measuring heat flux density at the surface of soils and other solids;Schneider;Agr. Meteorol.,1969
3. On the possibility of determining thermal properties from contact-surface temperatures;Stigter;Physica,1968
4. On measuring properties of soils by thermal methods with special reference to the contact method;Stigter;Neth. J. Agr. Sci.,1969
5. Over de invloed van grondbewerking op het transport van warmte, lucht en water in de grond;Van Duin;Versl. Landbouwk. Onderzoek,1956