1. Hölscher P, Meijers P. Literature study of knowledge and experience of transition zones, Delft: report number 415990-0011 of GeoDelft; 2007.
2. Railway Technical Research Institute. Design standards for railway structures and commentary (Earth Structures), Tokyo, Japan; 2007.
3. Bridge abutment made of cement-mixed gravel backfill;Tatsuoka;Ground Improvement Case Histories,2015
4. European Rail Research Institute. Bridge ends embankment structure transition, state of art report. Report D 230.1/RP 3, Utrecht, the Netherlands; 1999.
5. UIC 719R: 2008. Earthworks and track bed for railway lines.