TY JOUR TI Development of uniform conversion coefficients for UBR products within the framework of bilateral cooperation between Russia and Norway KW common conversion factors KW experimental and control works KW fish size composition KW catch recording KW cooperation KW joint cruise JO Fisheries AU Shapovalova, L.A. AU Piskunovich, D.I. PY 2021 IS 2021 PB FSBI "TSUREN"