Two-photon generation of excitonic molecules in CuCl and CuBr.- Excitonic molecule and its bose condensation.- Biexciton luminescence in CuCl and CuBr.- Biexcitons IN CuCl.- Bose-einstein condensation of free excitons in AgBr.- Decay of two indirect excitons to direct and to indirect exciton state in thallous halides.- Biexciton fluorescence line shape in CdS.- Stress-induced splitting of emission lines from excitonic molecules in CdS and ZnO.- Spatial diffusion of highly created excitons in CdS.- Effects of excitonic molecules on emission and transmission spectra of CdS single crystals.- Long range order and superfluidity for bose condensed excitons.- Superfluid and excitonic states.- DLRO, ODLRO and superfluidity.- Semiconductor-metal transitions.- The kinetics of decay of electron-hole droplets in germanium.- Effect of the surface energy on the electron-hole drop luminescence in Ge.- Surface properties of electron-hole liquid in germanium.- Thermodynamical approach to the highly excited.- Auger recombination in the electron-hole drops IN Si and Ge.- Transport properties of high density electron-hole plasmas at low temperatures.- On the shape of the droplet in uniaxially stressed Ge.- Two-dimensional electron-hole metallic liquids.- Motion of electron-hole drops in ge at low exciton densities.- Luminescence and transport properties of electron-hole drops in highly excited germanium.- Cyclotron reonance study of diffusion problems in highly excited germanium.- Nucleation phenomena in electron-hole drop condensation in ultra-pure Ge.- An old story of new cyclotron resonance peaks in highly excited germanium.- Electron-hole drops in silicon.- Stochastic models of intermediate state interaction in second order optical processes.- Photoluminescence in highly excited GaSe.- Stimulated emission in layer-type semiconductors.- Effects of excitation-induced optical absorption in highly excited semiconductors.- High excitation of direct semiconductors like CdS.- Pico-second spectroscopy of highly excited semiconductors.- Comment on “self-induced transparency in the exciton system”.- Coherent optical pulses in crystals.