@article{eage:/content/papers/10.3997/2214-4609-pdb.300.43, author = "Motoyuki, Sato and Satoshi, Ebihara and Hiroaki, Niitusma", title = "Analysis of a directional borehole radar signal with a time-frequency distribution", journal= "", year = "1994", volume = "", number = "", pages = "", doi = "https://doi.org/10.3997/2214-4609-pdb.300.43", url = "https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.300.43", publisher = "European Association of Geoscientists & Engineers", issn = "2214-4609", type = "", eid = "cp-300-00041", }