Sugakov V. Exciton condensation in quantum wells: Quantum Effects in Semiconductors and Insulating Materials. Fiz. Nizk. Temp. [інтернет]. 25, Вересень 2006 [цит. за 11, Листопад 2025];32(11):1449-57. доступний у: http://80.92.230.95/index.php/fnt/article/view/f32-1449e