Radiation-hardness studies of high <f>OH−</f> content quartz fibres irradiated with <f>500 MeV</f> electrons - Dumanoglu, I.; Akchurin, N.; Akgun, U.; Ayan, S.; Bruecken, P.; Eskut, E.; Fenyvesi, A.; Kayis Topkasu, A.; Koca, N.; Makonyi, K.; Merlo, J.-P.; Novak, D.; et al. (Nuclear Instruments & Methods in Physics Research Section A, 2002)