Kinetics of exciton condensation in germanium Bagaev, V. S. ; Zamkovets, N. V. ; Keldysh, L. V. ; Sibel'Din, N. N. ; Tsvetkov, V. A. Abstract Publication: Soviet Journal of Experimental and Theoretical Physics Pub Date: April 1976 Bibcode: 1976JETP...43..783B