00320nam a2200085Ia 4500008004100000100001600041245007000057260008800127650001900215220216s9999    xx            000 0 und d  aGrasenick F 0aElectron microscope research on natural rubber by special methods  bProceedings of the Natural Rubber Research Conference, Kuala Lumpur, 1960; p619-626  aNatural rubber