1. Behavior of Non‐Metallic Crystals in Strong Electric Fields;Keldysh L. V.;Soviet Phys. JETP‐USSR,1958
2. Influence of the Lattice Vibrations of a Crystal on the Production of Electron‐Hole Pairs in a Strong Electrical Field;Keldysh L. V.;Soviet Phys. JETP‐USSR,1958
3. The Effect of a Strong Electric Field on the Optical Properties of Insulating Crystals;Keldysh L. V.;Soviet Phys. JETP‐USSR,1958
4. Impurity Conductivity of Germanium at Low Temperatures;Vul B.;Dokl. Akad. Nauk SSSR,1960
5. Kinetic Theory of Impact Ionization in Semiconductors;Keldysh L. V.;Soviet Phys. JETP‐USSR,1960