%0 Journal Article %A Ramamoorthy Ramesh %A B.G Bagley %A J.M Tarascon %A S.M Green %A M.L Rudee %A H.L Luo %B Journal of Applied Physics %D 1990 %G eng %P 379-387 %R 10.1063/1.345266 %T Grain boundaries and defects in superconducting Bi-Sr-Ca-Cu-O ceramics %V 67