“DOBREfraction'99”—velocity model of the crust and upper mantle beneath the Donbas Foldbelt (East Ukraine) - Grad, M.; Gryn', D.; Guterch, A.; Janik, T.; Keller, R.; Lang, R.; Lyngsie, S.B.; Omelchenko, V.; Starostenko, V.I.; Stephenson, R.A.; Stovba, S.M.; Thybo, H.; et al. (Tectonophysics, 2003)