1. Untersuchung der von Schweren Ionen in Dielectrica erzeugten Defectstructuren mittels Kleinwinkelstreuung;Albrecht;GSI Report 83-13,1983
2. Measurements of the diameter of selectively etchable tracks produced in polymer by heavy ions;Apel;Nucl. Tracks,1982
3. Radiation chemical processed and track structure in polythylene terephthalate irradiated with heavy ions;Apel;JINR Preprint R12-84-773,1984
4. Investigation of the radial pore etching rate in a plastic track detector as a function of the local damage density around the ion path;Apel;Nucl. Tracks Radiat. Meas.,1986
5. Track structure of heavy ions in polyethylene terephthalate;Apel;Physics of heavy ions — 1985. JINR P7-86-322,1986