1. Propionic and butyric acids;Playne,1985
2. New separation techniques in biotechnology;Cascaval;Roum. Biotechnol. Lett.,2001
3. Separation of lactic acid: recent advances;Wasewar;Chem. Biochem. Eng. Q,2005
4. Recovery of low molecular weight compounds from complex aqueous mixtures by extraction;Schugerl;Int. Chem. Eng.,1992
5. Extraction processes for bioproduct separation;Hartl;Sep. Sci. Technol.,1993