00649naa a2200133 a 450000100080000000500110000800800410001910000200006024500970008026000090017770000220018670000200020877302870022810303412008-04-14 2000 bl --- 0-- u #d1 aFERREIRA, J. A. aDetection and characterization of hidrofobic sites inhumic acid by ESR of spin-label 5-SASL. c20001 aNASCIMENTO, O. R.1 aMARTIN-NETO, L. tIn: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY-IHSS, 10., 2000, Toulouse, France. Entering the third millenium with a common approach to humic substances and organic matter in water, soil and sediments: proceedings... [S.l.]: IHSS, 2000.gv.1. p. 1139-1142.