1. L'emploi de la congelation pour l'execution de travaux dans les terrains aquiféres;Schmidt;Bull. Soc. Ind. Min. St. Etienne,1895
2. Berg-und Hüttenmannische Zeitung;Kohler,1883
3. Recent developments in liquefaction and transportation of natural gas;Ritter;Chem. Eng. Progr.,1962
4. Triaxial constant strain-rate and triaxial creep tests on frozen Ottawa sand;Sayles,1974
5. Artificial freezing of soils — theory and practice;Khakimov,1963