00354nam a2200133Ia 4500008004100000082001600041100001900057245003600076260004200112300000900154600002000163600002000183650001700203140113s9999 xx 000 0 und d a576.8 L2.7A a"Norris, J. R" aMethods in microbiology. Vol.7A b"New York : Academic Press Inc, 1972" a479p a"Ribbons, D. W" a"Ribbons, D. W" aMicrobiology