3Costas A Anagnostopoulos. Laboratory study of an in- jected granular soil with polymer grouts [J]. Tunnel- ling and Underground Space Technology, 2005, (7) 523-533.
4Rimantas Mackevicius. Possibility for Stabilization of Grounds and Foundations of Two Valuable Ancient Cathedrals on Weak Soils in Baltic Sea Region with Grouting [J]. Procedia Engineering, 2013, (57): 730 -738.