1. Isolation and chemical characterization of dissolved and colloidal organic matter;Aiken;Chem. Ecol.,1983
2. Humic Substances in the Suwannee River, Georgia: Interactions, Properties, and Proposed Structures;Averett,1994
3. Polymeric [tetrahydrofurantetracarboxylato(1-)]caesium(I), [Cs(C8H7O9)], and hexaaqua [tetrahydrofurantetracarboxylato(4-)]dicalcium dihydrate(II), [Ca2(C8H4O9)-(H2O)6].2H2O;Barnes;Acta. Cryst.,1984
4. The Infra-red Spectra of Complex Molecules;Bellamy,1960
5. Thermal degradation relevant to structural studies of humic substances;Bracewell,1989