00277nam a2200097Ia 4500008004100000082001700041100003100058245004300089260003900132300000800171140113s9999    xx            000 0 und d  a543.544   K4  a"Marini-Bettolo,G.B., Ed."  aThin Layer Chromatography :Proceedings  a1964bElsevier Pub. Co.cAmsterdam  a232