Seeland D. Depositional systems of a synorogenic continental deposit - the Upper Paleocene and Lower Eocene Wasatch Formation of the Powder River Basin,northeast Wyoming / D.Seeland, 1992. - 20 p. - Текст : непосредственный.
Seeland D. Origin of thick lower Tertiary coal beds in the Powder River Basin,Wyoming and Montana-Some paleogeographic constraints / D.Seeland, 1993. - III,Q13 p. p. - Текст : непосредственный.