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CHAPMAN, 1942, AM J PHYS, V10, P22
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FOUNTAIN, 1942, AM J PHYS, V10, P322
[4]
HAMILTON, 1939, RES STOPPING DISTANC
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HOLMES, 1939, PUBLIC ROADS, V19
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LOUTZENHEISER, 1938, P HIGHWAY RES BOARD, V18, P90
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MOYER, 1934, B IOWA ENG EXPT STAT, V120, P72
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THOMPSON, 1939, STUDIES DRIVER BEHAV
[10]
1934, P I TRAFFIC ENG, P19