6 th International Symposium of Space Optical Instruments and Applications : Delft, the Netherlands, September 24–25, 2019. [ca. 2021]. In H. P. Urbach & Q. Yu (Hrsg.), Space Technology Proceedings (1 st ed. 2021) [Cd]. Cham: Springer International Publishing. https://doi.org/10.1007/978-3-030-56488-9
ISO-690 (author-date, English)URBACH, H. Paul und YU, Qifeng (Hrsg.). 1 st ed. 2021. Cham: Springer International Publishing. ISBN 9783030564889.
Modern Language Association 9th editionUrbach, H. P., und Q. Yu, Herausgeber. „6 th International Symposium of Space Optical Instruments and Applications : Delft, the Netherlands, September 24–25, 2019“. Space Technology Proceedings, 1 st ed. 2021, cd, Springer International Publishing, 2021, https://doi.org/10.1007/978-3-030-56488-9.
Mohr Siebeck - Recht (Deutsch - Österreich): 6 th International Symposium of Space Optical Instruments and Applications : Delft, the Netherlands, September 24–25, 2019, 1 st ed. 2021. Aufl. Cham 2021.
Emerald - HarvardUrbach, H.P. und Yu, Q. (Hrsg.). (2021), 6 th International Symposium of Space Optical Instruments and Applications : Delft, the Netherlands, September 24–25, 2019, Space Technology Proceedings, 1 st ed. 2021., Bd. , Springer International Publishing, Cham, verfügbar unter:https://doi.org/10.1007/978-3-030-56488-9.