Ralph E. Geiselman

A I-JUMAN PERFORMANCE EVALUATION OF GRAPHIC SYMBOL-DESIGN FEAIWFSS1

Betty M. Landee, Michael G. Samet, Ralph E. Geiselman, 1982 .

Perceptual Discriminability as a Basis for Selecting Graphic Symbols

Ralph E. Geiselman, Betty M. Landee, Francois G. Christen, 1982 .

An Experimental Evaluation of Tactical Symbol-Design Features

Michael G. Samet, Ralph E. Geiselman, Betty M. Landee, 1980 .