Elastic interaction and phase transition in coherent metal-hydrogen alloys.- Lattice strains due to hydrogen in metals.- Investigation of vibrations in metal hydrides by neutron spectroscopy.- The change in electronic properties on hydrogen alloying and hydride formation.- Mössbauer studies of metal-hydrogen systems.- Magnetic properties of metal hydrides and hydrogenated intermetallic compounds.- Theory of the diffusion of hydrogen in metals.- Nuclear magnetic resonance on metal-hydrogen systems.- Quasielastic neutron scattering studies of metal hydrides.- Magnetic after effects of hydrogen isotopes in ferromagnetic metals and alloys.- Diffusion of hydrogen in metals.- Positive muons as light isotopes of hydrogen.