1. DIN 6800 Teil 2: Dosismeßverfahren nach der Sondenmethode für Photonen- und Eleklronenstrahlung – Ionisationsdosimetrie,1990
2. Properties of an Electret Ionisation Chamber for Individual Dosimetry in Photon Radiation Fields;Dörschel;Radiat. Prot. Dosimetr.,1986
3. X and Gamma Dose Measurement Using Electrets;Kolrappa;Radiat. Prot. Dosimetr.,1982
4. Recent Advances in Electret Ion Chamber Technology for Radiation Measurements;Kotrappa;Radiat. Prot. Dosimetr.,1993
5. Development of an Electret Dosemeter for Measurement of Surface Doses on the Patient;Kunz,1995