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Aplicación del modelo de balance de masa y determinación de cargas críticas para un sistema lacustre polar no intervenido
(Instituto Antártico Chileno, 1999)
Gelatinase activitiy of matrix metalloproteinases in the cerebrospinal fluid of various patient populations
(P J D PUBLICATIONS LTD, 1999)
Magnetic properties of dinuclear copper(II) complexes with simple pyrazolate bridges
(ROYAL SOC CHEMISTRY, 1999-09-07)
Concentration and fractionation of Cu, Cr, Ni and Zn in montmorillonitic and allophanic soils: Comparison of two different extraction methods
(IST CHIMICA AGRARIA, UNIV PISA VIA S MICHELE DEGLI SCALZI, 1999-05)
Balance de nitrógeno y fósforo en suelos en sistema de cero labranza
(Temuco, Chile, Universidad de la Frontera, Facultad de Ciencias Agropecuarias, 1999)