title: Sigma-organoniobium compounds with [NbR4]- and NbR4 stoichiometries.
authors.affiliation: Instituto de Ciencia de Materiales de Aragón (I.C.M.A.), Universidad de Zaragoza-C.S.I.C. C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
authors.forename: Pablo J
authors.initials: PJ
authors.lastname: Alonso
authors.forename: Irene
authors.initials: I
authors.lastname: Ara
authors.forename: Ana B
authors.initials: AB
authors.lastname: Arauzo
authors.forename: M Angeles
authors.initials: MA
authors.lastname: García-Monforte
authors.forename: Babil
authors.initials: B
authors.lastname: Menjón
authors.forename: Conrado
authors.initials: C
authors.lastname: Rillo