title: Glyoxal bis-hydrazones: a new family of nitrogen ligands for asymmetric catalysis.
authors.affiliation: Instituto de Investigaciones Químicas, c/ Americo Vespuccio s/n, 41092 Seville, Spain. jmlassa@cica.es
authors.forename: José M
authors.initials: JM
authors.lastname: Lassaletta
authors.forename: Manuel
authors.initials: M
authors.lastname: Alcarazo
authors.forename: Rosario
authors.initials: R
authors.lastname: Fernández