@article{eage:/content/papers/10.3997/2214-4609-pdb.15.F-17, author = "Staples, R.K. and De Waal, J.A. and Calvert, R.W. and Hartung, M.", title = "Shell's Drive for 4D Seismic", journal= "", year = "2001", volume = "", number = "", pages = "", doi = "https://doi.org/10.3997/2214-4609-pdb.15.F-17", url = "https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.15.F-17", publisher = "European Association of Geoscientists & Engineers", issn = "2214-4609", type = "", eid = "cp-15-00411", }