A. P. Bogatov, A. E. Drakin, V. R. Medvedev, A. V. Ustinov, “Calculation of the propagation constant of a laser mode in multilayer quantum-well heterostructures by the ‘incoming’ wave method”, Kvantovaya Elektronika, 25:6 (1998), 488–492 [Quantum Electron., 28:6 (1998), 474–477]
