Editing Track ballast (section)

==References==
{{Refbegin|2}}
* {{cite conference | last1 = Anderson | first1 = W. F. |last2=Key |first2=A. J.  | book-title = Twelfth European Conference on Soil Mechanics and Geotechnical Engineering (Proceedings) | title = Two layer ballast beds as railway track foundations | year = 1999 | publisher = AA Balkema | isbn= 90-5809-047-7 }}
* {{cite book | title = Vibration Problems in Structures: Practical Guidelines | author = Bachmann, Hugo| isbn = 3-7643-5148-9 | publisher = Birkhäuser | year = 1997|display-authors=etal}}
* {{cite book | title = Engineering Geology and Construction | last = Bell | first = F.G. | year = 2004 | publisher = Spon Press | isbn = 0-415-25939-8}}
* {{Bonnett Practical Rail Engineering}}
* {{cite book |title=Ellis' British Railway Engineering Encyclopaedia |year=2006 | last = Ellis | first = Iain | publisher = Lulu.com | isbn =  1-84728-643-7 }}{{better source needed|date=May 2022|reason=This is a self published work, non-self-published is preferable}}
* {{cite book | title = Railroad Engineering | last = Hay | first = William Walter | year = 1982 | publisher = John Wiley and Sons | isbn = 0-471-36400-2 }}
*{{cite book |last1=Indraratna |first1=Buddhima |title=Advanced rail geotechnology--ballasted track |date=2011 |publisher=CRC Press/Balkema |location=Leiden, The Netherlands |isbn=978-0-203-81577-9 }}
* {{cite book | title = Urban Railways and the Civil Engineer | year = 1988 | author =Institution of Civil Engineers | publisher = Thomas Telford | isbn = 0-7277-1337-X }}
* International Federation for Structural Concrete (fédération internationale du béton) bulletin #37.
* {{cite book | title = Handbook of Transportation Engineering | last = Kutz | first = Myer | year = 2004 | publisher = McGraw-Hill | isbn = 0-07-139122-3 }}
* {{cite book | title = Track Geotechnology and Substructure Management | last = Selig | first = Ernest Theodore |author2=Waters, John M.  | year = 1994 | publisher = Thomas Telford | isbn = 0-7277-2013-9}}
* {{cite book | title = Railway Maintenance Equipment: The Men and Machines that Keep the Railroads Running | last = Solomon | first = Brian | publisher = MBI Publishing Company | year = 2001 | isbn = 0-7603-0975-2 }}
{{Refend}}