Ulrich Petersohn, Peter Diekmann; DOPY - A Minimum Motions Drifting Data Buoy, Proceedings of MTS/IEEE OCEANS'79 Conference, pp. 245 - 249, September 1979.

Ulrich Petersohn, Peter Diekmann; An adaptable radio-controlled measuring system for oceanographic research in shallow water, IEEE J. Oceanic Eng., vol. 3, pp. 60 - 64, July 1978.

Habil U. Petersohn, G. Pries, P. Diekmann; Remotely controlled profiling system for measurements in shallow water, Proceedings of MTS/IEEE OCEANS'77 Conference, pp. 338 - 342, September 1977.

Peter Diekmann; An offshore measuring system for chemical biological physical parameters, OCEANS'74 --- IEEE International Conference on Engineering in the Ocean Environment, pp. 239 - 240, August 1974.