Holmes, H ; Paraskevopoulou, C ; Hildyard, M.. https://eprints.whiterose.ac.uk/200050/7/Jointed%20rock%20masses%20as%20metamaterials%20%E2%80%93%20Implications%20for%20railway.pdf.
,
2023
Jia, W ; Markine, V ; Carvalho, M.. https://eprints.whiterose.ac.uk/199708/1/Design%20of%20a%20concept%20wedge-shaped%20self-levelling%20railway%20sleeper.pdf.
,
2023