D. Garbe, G. Dietl, M. Gardill, and K. Schilling. Proceedings of the 73rd International Astronautical Congress, IAC 2022, Paris, France, (September 2022)
A. Dey, D. Salber, G. Abowd, and M. Futakawa. Wearable Computers, 1999. Digest of Papers. The Third International Symposium on, page 21--28. IEEE, (October 1999)