TY - GEN AU - Johannessen, Marina Mosbæk TI - Gentic variation and CO2 exploitation in winter varities of oilseed rabe (Brassica napus) U1 - 633 PY - 1998/// CY - Risö PB - Roskilde Univ. KW - BRASSICA NAPUS GENETIC VARIATION OIL CROPS ER -