I Integral Quantum Hall Effect, Localization in High Magnetic Fields, Density of States.- Localization in Landau Levels of 2D Systems and the Quantum Hall Effect.- Scaling of the Integral Quantum Hall Effect.- Percolation Approach to the Quantum Hall Effect.- Electrons in a Random Potential and Strong Magnetic Field: Lowest Landau Level.- Calculation of the Conductivity of Two-Dimensional Disordered Systems in the Presence of a Strong Magnetic Field.- Quantum Hall Effect: From the Winding Number to the Flow Diagram.- Scattering Approach to the Quantum Hall Effect.- The Quantum Mechanical Hall Effect.- Density of States of Landau Levels in Two-Dimensional Systems from Activated Transport, Magnetocapacitance and Gate Current Experiments.- A Statistical Model for Inhomogeneities Explaining the Apparent Density of States Between Landau Levels of a Two-Dimensional Electron Gas.- The Density of States of a Two-Dimensional Electron Gas in a Perpendicular Magnetic Field Under the Influence of a Correlated Random Potential.- Frequency- and Temperature-Dependent Conductivity in the Quantum Hall System.- Ground-State Energy of Two-Dimensional Electron Solids in High Magnetic Fields.- Energy Spectra of Interacting Two-Dimensional Electrons in a Magnetic Field.- High-Frequency Conductivity in the Quantum Hall Effect Regime.- A New Approach to the Quantum Hall Effect.- A New Quantum Effect in the Transverse Magnetoresistance of Two-Dimensional Conductors with a Narrow Constriction in the Conducting Channel.- A Model for the Quantum Effects Observed in the Transverse Magnetoresistance of Two-Dimensional Conductors with a Constricted Channel.- Photoexcited Quantum Hall Behavior in Modulation Doped GaAs/AlGaAs Heterostructures: Parallel Conduction and Subthreshold Photoeffects.- Quantum Hall Effect in Bicrystals of p-Hg0 75Cd0 23Mn0 02Te.- High-Precision Quantum Hall Effect Experiments at the National Institutes.- II Fractional Quantum Hall Effect.- Fractional Quantum Hall Effect in Silicon MOSFETs.- Recent Advances in the Study of the Fractional Quantum Hall Effect.- Activation Energies of the Fractional Quantum Hall Effect in GaAs/AlGaAs Heterostructures.- Fractional Quantum Hall Effect of p-Type GaAs-(GaAl)As Heterostructures in the Millikelvin Range.- The Two-Dimensional Density of States at Fractional Filling Factors.- Possible Fractional Filling Factors in the Quantum Hall Effect at Temperatures up to 4.2 K.- III Heterostructures and Superlattices: Optics.- Tunneling Cyclotron Resonance in Semiconductor Superlattices.- Thermodynamic and Magneto-Optic Investigations of the Landau Level Density of States for 2D Electrons in GaAs.- Magneto-Luminescence in Modulation-Doped AlGaAs-GaAs Multiple Quantum Well Heterostructures.- Magneto-Luminescence in GaAs-(GaAl)As Superlattices.- Magneto-Optics in GaAs-GaAlAs Quantum Wells.- Inelastic Light Scattering in Two-Dimensional Systems in High Magnetic Fields.- High Magnetic Field Studies of Confined Impurities in Semiconductors.- Determination of the Electric Subband Energies and Wavefunctions in GaAs-AlGaAs Heterostructures Using Resonant Subband-Landau-Level Coupling.- Cyclotron Resonance in n-GaAs/GaAlAs Heterojunctions.- Cyclotron Resonance in InSb in Crossed Electric and Magnetic Fields.- Electronic Excitations in Laterally Microstructured AlGaAs-GaAs Heteroj unctions.- Landau Level Width and Cyclotron Resonance in 2D Systems.- Hole Cyclotron Resonance in p-Type GaAs-AlGaAs Superlattices in High Magnetic Fields.- Magnetoplasma Resonance in the Dynamic Conductivity of a Type I Superlattice.- Radiative Recombination of Two-Dimensional Electrons with Nonequilibrium Holes in Si MOS-Structures.- IV Heterostructures and Superlattices: Transport, Bandstructure.- Theory of p-Type Inversion Layers in Magnetic Fields.- Transport Properties of p-Type GaAs-(GaAl)As Heteroj unctions in High Magnetic Fields.- Two-Dimensional Hole Gas in GalnAs/InP Heteroj unction.- Magnetotransport in the ?-Doping Layer.- Magnetotransport and Photoconductivity of IV-VI Compound Superlattices.- Oscillatory Current-Voltage Characteristics and Magnetocapacitance Effects in Single Barrier n+GaAs/(AlGa)As/n-GaAs/n+GaAs Heterostructures.- Aperiodic Quantum Magnetoresistance Oscillations in Submicron n+GaAs Wires.- Magnetic Crossover in Narrow 2D Electron Systems.- Resonant 2D Magnetopolarons in Accumulation Layers on n-Hg0 8Cd0 2Te.- Phonon Scattering in Multiquantum Well Structures.- Tunneling in Silicon Inversion Layers in High Magnetic Fields.- Germanium Bicrystals in High Magnetic Fields.- V Metal-Insulator Transition.- The Metal-Insulator Transition in n-Type Silicon in High Magnetic Fields.- Anderson Transition Induced by Strong Magnetic Fields.- Electron Transport in the Magnetically Induced M-I Transition in InSb.- Magnetic Field Induced Metal-Nonmetal Transition in GaAs-GaAlAs Heterostructures with a Spacer.- VI Semimagnetic Semiconductors, IV-VI Materials.- High Field Investigations on IV-VI Semiconductors.- Recent Developments in Semimagnetic Semiconductors in Warsaw.- Recent High-Field Work on Diluted Magnetic Semiconductors.- Magnetic Field Dependence of the Acceptor Binding Energy in Open-Gap HgMnTe: Photo- and Magnetoconductivity.- Spin Modulated Energy State by Shubnikov-de Haas Analysis in Hg1-x-yCdxMnyTe at High Magnetic Fields.- Phase Differences Between Quantum Oscillations of the Magnetoresistance and the Hall Effect in Hg1-xMnxTe and Hg1-xCdxTe.- Magnetic Field Driven Insulator-to-Metal Transition in Semimagnetic Semiconductors.- Magnetospectroscopy of Semimagnetic Zn1-xMnxSe.- VII Magneto-Optics in 3D Systems.- Nonlinear Spectroscopy of Narrow Gap Semiconductors in High Magnetic Fields.- Energy Relaxation of Hot Carriers in GaAs in a Strong Magnetic Field Studied with Picosecond Photoluminescence.- Population Inversion and Anomalous Voigt Effect Due to JxH Force in InSb.- Interband Magneto-Optics in Narrow-Gap Semiconductors.- Far Infrared Thermomodulation in Hg0 8Cd0.2Te.- VIII Magneto-Transport in 3D Systems, Bandstructure.- Theoretical Aspects of Wigner Condensation.- On the Magnetic Field Induced Electron Condensation in n-HgCdTe.- High Field Magnetoresistance of Organic Conductors and Disordered Metals.- The Magnetophonon Effect in Narrow Gap Semiconductors.- Hopping Conduction in n-InP in a Magnetic Field.- Conduction Electrons in Bulk GaAs at High Magnetic Fields.- How Strong Are Resonant Polaron Effects in 2D and 3D Semiconductor Systems?.- IX Very High Field Work.- The State of the Art of Generating Pulsed Magnetic Fields.- Recent Investigations on Semiconductors in the 100 Tesla Range.- Davydov Splitting of Excitons in Anthracene Single Crystals in Megagauss Fields.- Index of Contributors.