VALENCY STATES PHYSICAL PROPERTIES 6 HAMILTONIAN FUNCTION 4 KONDO EFFECT 4 KUBO THEORY 4 CERIUM 2 CRYSTAL DEFECTS 2 ELECTRICAL RESISTIVITY 2 EQUIPMENT SURVEYS 2 ESTADOS DE VALENCIA 2 FERMI LEVEL 2 FLUCTUATIONS 2 HAMILTONIANS 2 INTERMEDIATE VALENCE SYSTEM 2 IONIZATION 2 MAGNETIZATION 2 MICROSCOPY ELECTRONIC 2 MOLECULAR CRYSTALS 2 MÖSSBAUER EFFECT 2 PHASE DIAGRAMS 2 PHASE TRANSFORMATIONS 2 RARE EARTH COMPOUNDS 2 REACCIONES IONICAS 2 SEMICONDUCTOR DEVICES 2 SOLID STATE PHYSICS 2 SPECIFIC HEAT 2 SPIN-SPIN INTERACTION 2 STOCHASTIC THEORY 2 STOCKBARGER METHOD 2 SUPERCONDUCTORS 2