The recording of time intervals of one-hundredth second duration upon paper ribbon is possible by the use of a comparatively inexpensive set-up.
Proceedings of the Iowa Academy of Science
©1929 Iowa Academy of Science, Inc.
"Techniques for Recording Time Intervals upon Paper Ribbon,"
Proceedings of the Iowa Academy of Science, 36(1), 346-346.
Available at: https://scholarworks.uni.edu/pias/vol36/iss1/108