@book{31508,
	author = {Döhler, Gottfried, ed.},
	title = {Quantum Well and Superlattice Physics IV},
	publisher = {SPIE},
	year = {1992},
	series = {Proceedings of SPIE; V. 1675},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1675}
}