00289nam a2200097Ia 4500008004100000082002500041100002400066245005700090260003600147300000800183140113s9999    xx            000 0 und d  a574.19'245.83   M4.2  a"Osterman, Lev. A."  aMethods of Protein and Nucleic Acid Reserch -Vol. II  a1984bSpringer-VerlagcNew York  a204