00452nam a2200145Ia 4500008004100000082001200041082000800053245007300061245002200134260002200156300000900178942000800187999001900195952009200214231017s9999 xx 000 0 und d a551.307 bWOO 0aDevelopment of A Rockfall Hazard Rating Matrix for the State of OHIO 0cMartin J. Woodard bMartin J. Woodard c30cm cREP c604259d604259 00104070aNITbNITd2023-10-17l0o551.307 WOOpNIT-2190r2023-10-17w2023-10-17yREP