Kienle, J., 1991, Volcanic air-aircraft incidents in Alaska in the years prior to the December 15, 1989 747 Redoubt encounter, in Casadevall, T.J., ed., First international symposium on Volcanic ash and aviation safety: U.S. Geological Survey Circular 1065, p. 27-28.
This publication is part of a larger work. Please see C 1065 for more information.