@misc{brockmann_the_use_1993, author={Brockmann, C.}, title={The use of the thematic mappers internal calibration sytem}, year={1993}, howpublished = {conference lecture: Frascati (I); 27.01.1993}, note = {Online available at: \url{} (DOI). Brockmann, C.: The use of the thematic mappers internal calibration sytem. Europaeische Weltraum Agentur ESA-ESRIN. Frascati (I), 1993.}}