1. Physical and hydrological flow properties of fractures: Field Trip Guidebook T385;Barton,1989
2. Field studies of joints, insufficients and solutions, with examples from the Piceance Creek Basin, Colorado;Grout,1983
3. The application of fractography to core and outcrop fracture investigations;Kulander;United States Department of Energy Rept METC/SP-79-3,1979
4. On the use of regional joint sets as trajectories of paleostress fields during the development of the Appalachian Plateau, New York;Engelder;J. Geophys. Res.,1980
5. Jointing in the Appalachian Plateau of Pennsylvania;Nickelsen;Bull. Geol. Soc. Am.,1967