TY - JOUR A1 - Pal, Josef A1 - Cura, Christian A1 - Ewert, Siegfried T1 - Magnetoacoustic measurements on pure and Zn-doped YBCO crystals Y1 - 2004 ER - TY - JOUR A1 - Cura, Christian A1 - Schubert, Rainer A1 - Ewert, Siegfried T1 - Interplay between superconductivity and magnetic ordering in Tb0.3Y0.7Ni2B2C single crystals KW - Superconductivity Y1 - 2004 ER -