Farkas Etelka;  Enyedy Éva Anna;  Micera Giovanni;  Garibba Eugenio: Coordination modes of hydroxamic acids in copper(II), nickel(II) and zinc(II) mixed-ligand complexes in aqueous solution.
  POLYHEDRON, 19 (14).  pp. 1727-1736.  ISSN 0277-5387 (2000)