Please check the webpage at my former university for older publications as well. Feel free to contact me per E-mail, if you wish to obtain a PDF version of a paper not linked here or check out one of the following links:
Maki Arai, Kiyoshi Egawa, Naoki Wakamiya, Kenji Leibnitz, Ferdinand Peper, Mikio Hasegawa, "Sheathed Dipole Antenna with an Outer Medium for Underground Massive IoT Communications", submitted for publication.
Kenji Leibnitz, Ferdinand Peper, Mikio Hasegawa, Naoki Wakamiya, Maki Arai, Kiyoshi Egawa, "Designing APCMA Pulse Codes for Underwater/Underground Massive IoT", submitted for publication.
Kenji Leibnitz, Makoto Fukushima, Betty Wutzl, "Analytical Estimation of Functional Connectivity from Biased Random Walks on a Structural Brain Network", in preparation.
The papers marked as "in preparation" are currently work in progress or only intended publications and the given titles are tentative.