@phdthesis{0ec346f1f9f54a6386a4881b82c69f13,
title = "On the properties of random pulse positioncode modulation, a system especially developed for the enciphering of speech signals",
author = "Jan Ekberg",
year = "1973",
language = "English",
isbn = "951-38-0015-6",
series = "Technical Research Centre of Finland: Electrical and Nuclear Technology. Publication",
publisher = "VTT Technical Research Centre of Finland",
number = "1",
address = "Finland",
school = "Helsinki University of Technology",
}