@book{9662,
	author = {Mari, J.-L.},
	title = {Chapter 2 â€¢ Refraction surveying},
	url = {https://www.edp-open.org/images/stories/books/contents/SeismicImaging/SeismicImaging_10.1051_978-2-7598-2351-2.c004.pdf}
}
