Wul B.M. , Shotov A.P. Multiplication of electrons and holes in p-n junctions. Solid State Physics in Electronics and Telecommunications. Intern. conf. Proc. Brussel, June 2-7, 1958. Vol.1 Semiconductors. Pt. 1 / Ed. M.Desirant, J.L.Michiels , с. C.491-497 Wul B.M. , Shotov A.P. , Bagaev V.S. , Krokhin O.N. , Popov Y.M. , Kopylovsky B.D. , Khvoshev A.N. , Markin E.P. Semi-conductor Laser on P-N Junctions in GaAs. Quantum Electronics.Proc. 3-th Intern.Congr. / Ed.P.Grivet, N.Bloembergen , Vol.2 , с. P.1891-1897 , 01.1964