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by Institute of Electrical and Electronics Engineers
by Cabrera, Blas; Miller, Aaron; Young, Betty
by Sieckmann, Jan-reinard
by Edelstein, Daniel C.; Schultz, Stefan E.
by Hyde, Glenda
by Dumbrill, Richard; Finkel, Irving
by Johnson; Craig
by Brunner, Julia F.; Cross, Jeffrey N.; National Park Service
by Mele, Gregory D.