A three-position spectral line survey of Sagittarius B2 between 218 and 263 GHzA. Nummelin, Bergman, Per (Astronomer), Åke Hjalmarson, Per G. Friberg, William M. Irvine, T. J. Millar, M. Ohishi, Saito, Shinji (Physicist) · First published 1998Open the Tome
The Archaic Period in PennsylvaniaPaul A. Raber, J. M. Adovasio, Todd A. Koetje, Christopher Bergman, Kurt William Carr, Kenneth E. Sassaman · First published 1998Open the Tome
