by Gapalek, p., Habisreuther, T., Straβer, T., pu, M., Litpkendorf, D., Fischer, K., Görnert, P., Gladun, A., Stope, P., Verges, P., Ilushin, K.V., Kovalev, L.K.
Published in Applied superconductivity (01.07.1994)