Paulsen, H, Duelund, L, Zimmermann, A, Averseng, F, Gerdan, M, Winkler, H, Nielsen, H T & Trautwein, A X 2003, ' Substituent Effects on the Spin-Transition Temperature in Complexes with Tris(pyrazolyl) Ligands ', Monatshefte für Chemie / Chemical Monthly, vol. 134, pp. 179-190 . https://doi.org/10.1007/s00706-002-0522-7