00393nam a2200109Ia 4500008004100000082001700041245006300058260003200121942000700153999001700160952010600177220204s9999    xx            000 0 und d  a547.9bPRO.6 0aProgress in the chemistry of organic natural products. V 6  aWienbSpringer Verlagc1950  cBK  c25795d25795  00104070aMAINbMAINd2021-12-16g90.00l0o547.9 PRO.6p06441r2021-12-16 00:00:00w2022-02-14yBK