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DD249925A1
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Method and apparatus for metal coating of objects for electronic microscopic studies by means of cathode scrubbing
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DD248207A1
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Logarithming circuit arrangement
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DD246552A1
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Method for recovering rare connections from fluid waste
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DD246551A1
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Method for recovering rare connections from fluorescent lamps
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DD246566A1
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Selection procedure for phytoeffectors with effect on chlorophylene synthesis
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DD246565A1
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Selection procedure for phytoeffectors with effect on the carotinoidsynthesis
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DD241685A1
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Herbicides containing 5-substituted 2-amino-1,3,4-oxadiazole
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DD237001A1
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Selection of
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DD227794A1
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Device for direct comparison of optical properties and ion sales in cell suspensions
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DD226903A1
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Selection process for growth effectors
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DD226757A1
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Algicide medium
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DD226297A1
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Toxicity value for bio effectors
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DD225794A1
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Selection procedure for photosynthese effectors by analysis of the prompt chlorophyll-a fluorescenzin induction process
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DD220047A1
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Selection procedure for effectors by growth and ion revenue analysis autotrophic micro algae suspensions
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DD216254A1
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Selection process for effectors by means of gas revenue and growth analysis autotrophic cell suspensions
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DD216253A1
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Selection procedures for effectors by means of gas revenue and growth analysis heterotrophic cellus useful
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DD216324A1
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Device for external photometric measurements by light cable
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DD215332A1
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Process for the quantitative or partial sedimentation of micro-organisms
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DD214455A1
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Selection procedure for photosynthese effectors by analysis of prompt chlorophyll a fluorescence
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DD214146A1
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Method for selection of effectors by growth analysis of cell suspensions
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