TY - GEN A1 - Krumbeck, Hartwig T1 - Measurement of photosynthetic carbon fixation in aquatic systems T2 - Rostocker meeresbiologische Beiträge KW - carbon Y1 - 1998 SN - 0943-822X IS - 6 SP - 11 EP - 15 ER - TY - GEN A1 - Krumbeck, Hartwig A1 - Ockenfeld, Klaus T1 - Measurement of primary production in aquatic systems by the radiocarbon method T2 - Rostocker meeresbiologische Beiträge KW - primary production Y1 - 1998 SN - 0943-822X IS - 6 SP - 93 EP - 100 ER -