Composition #14: Cramer, Luise., Fleck, Gunther., Horn, Gert., Beuerle, Till. Process Development of Lappula squarrosa Oil Refinement: Monitoring of Pyrrolizidine Alkaloids in Boraginaceae Seed Oils. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 2014, vol. 91, no. 5, p. 721–731. DOI: 10.1007/s11746-014-2426-1.
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