1. Cvijic J (1893) Das Karstphaenomen. Versuch einer morphologischen Monographie. Geograph Abh Wien 5(3):218?329
2. Gams I (1971) Krajna vas. A study of the natural conditions and of agrarian land use in the Karst. Geograf Zb. 12
3. Gams I (1973) The evolution of the Slovene words ?kras? and ?dolina? until the end of the 19th century. Lubljana: Slovenska kraska terminologija
4. Gams I (1974) Kras. Izdalu Slovenska matica, V. Lubljani. 360pp
5. Gams I (1980) Depth of rillenkarren as a measure of deforestation age. Stud Carsol 2