Garrett, B.; Glew, R.W.: 'Low-threshold, high-power zero-order lateral-mode DQW-SCH metal-clad ridge waveguide (AlGa)As/GaAs lasers', Electronics Letters, 1987, 23, (8), p. 371-373, DOI: 10.1049/el:19870272
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1p0y6u4i43nww.x-iet-live-01content/journals/10.1049/el_19870272