@article{eage:/content/papers/10.3997/2214-4609.201801794, author = "Stovas, A. and Roganov, Y. and Roganov, V.", title = "Difference between phase and group angles in ORT media", journal= "", year = "2018", volume = "2018", number = "1", pages = "1-5", doi = "https://doi.org/10.3997/2214-4609.201801794", url = "https://www.earthdoc.org/content/papers/10.3997/2214-4609.201801794", publisher = "European Association of Geoscientists & Engineers", issn = "2214-4609", type = "", }