1. Zh. I. Alferov, V. M. Andreev, D. Z. Garbuzov, Yu. V. Zhilyaev, E. P. Morozov, E. L. Portnoi, and V. G. Trofim, ?Investigation of the influence of the heterostructure on the laser threshold current and attaining cw lasing at room temperature,? Fiz. Tekh. Poluprovodn.,4, 1826?1830 (1970).
2. I. Hayashi, M. B. Panish, P. W. Foy, and S. Sumski, ?Junction lasers which operate continuously at room temperature,? Appl. Phys. Lett.,17, No. 3, 109?112 (1970).
3. I. K. Bronshtein, L. M. Dolginov, L. V. Druzhinina, P. G. Eliseev, I. V. Krasavin, and L. D. Libov, ?Cw injection laser operating at 300°K,? Krat. Soobshch. GIREDMET, Ser. 5, No. 21 (1970).
4. L. M. Dolginov, L. V. Druzhinina, P. G. Eliseev, I. V. Krasavin, and L. D. Libov, ?Cw operation of semiconductor lasers at room temperature,? Krat. Soobshch. Fiz. FIAN, No. 2, 57?63 (1971).
5. L. M. Dolginov, P. G. Eliseev, L. D. Libov, I. Z. Pinsker, E. L. Portnoi, G. G. Kharisov, and E. G. Shevchenko, ?Diffraction divergence of radiation and effect of optical reflection in heterostructure injection lasers,? Krat. Soobshch. Fiz. FIAN, No. 12, 63?66 (1970).