selected publications article Multiphase Behavior and the Superconducting Composition in Nd(2-x)Ce(x)CuO(4).. Physica C. 165-166. 1990 Variable Range Hopping Conduction in the Ba(1-x)K(x)BiO(3-y) System.. Physica C. 156. 1988 Structural Phase Diagram and Superconducting Behavior of the Ba(1-x)K(x)BiO(3) System.