20th anniversary of the PINRO-IMR cooperation in the investigations of fish feeding in the Barents Sea – results and perspectives. In Haug,. T., Misund, O.A., Gjøsæter, H., and Røttingen, I. (Eds.). Long–term bilateral Russian–Norwegian scientific cooperation as a basis for sustainable management of living marine resources in the Barents Sea. Proceeding of the 12th Norwegian–Russian Symposium. Tromsø, 21–22 August 2007: 44–78