000 00374nam a2200121Ia 4500
008 220214s9999 xx 000 0 und d
100 _aKarlsson S
245 0 _aMethodological comparison of photosynthetic rates measured by the 14 CO2 technique or infra-red gas analysis
260 _bPhotosynthetica
_c1981
300 _a447-452
700 _aSveinbjornsson B
942 _cRE
999 _c45717
_d45717