@article{UBHD-68045617, author={Lesch, Harald and Appl, Stefan and Camenzind, Max}, title={Collective plasma processes in extragalactic radio sources}, year={1989}, pages={341-350}, language={eng}, issn={1432-0746}, volume={225}, number={2}, note={Gesehen am 03.11.2016}, journal={Astronomy and astrophysics}, }