High T.sub.c superconducting microstrip phase shifter having tap
Nonspecular reflector with diffusely reflecting superconductor a
Superconducting windows for electromagnetic screening
Superconductive conjugate photoconductive substances of the Bi-S
Superconductive optoelectronic devices with the basic substance
Superconductive photoconductive substance of the Ba-Pb-Bi-O grou
Superconductive photoconductive substance of the Ca-Sr-Bi-Cu-O g