Kelley, J.T., Barnhardt, W.A., Belknap, D.F., Dickson, S.M., and Kelley, A.R., 1998, The Seafloor revealed: The geology of Maine\’s inner continental shelf. A report to the Regional Marine Research Program, Maine Geological Survey Open-file report Maine Geological Survey Open-File Report 98-6, 55 p.
Grew, E.S., Yates, M. G., Huijsmans, J.P.P., McGee, J.J., Shearer, C.K., Wiedenbeck, M., and Rouse, R.C. (1998) Werdingite, a borosilicate new to granitic pegmatites. Canad. Mineral., 36, 399-414.