1. Railway earth-works and trackbed;UIC,1985
2. The treatment of unstable slopes and railway track formations;Ayres;J. Soc. Engineers, London,1961
3. Filtration and drainage: Part 3, Use of geotextiles;ORE,1983
4. Membranes in Ground Engineering;Rankilor,1981
5. Filter criteria for geotechnics;Schober,1978