Biological interactions between polysaccharides and divalent cations: The egg-box model Grant, Gregor T. ; Morris, Edwin R. ; Rees, David A. ; Smith, Peter J. C. ; Thom, David Abstract Publication: FEBS Letters Pub Date: January 1973 DOI: 10.1016/0014-5793(73)80770-7 Bibcode: 1973FEBSL..32..195G