Ashfaq Mahmood, Peter Mueller, Alan Davison and Alun G. Jones, Terrence Nicholson*, Esther Chun,. “Synthesis, Spectroscopy and Structural Analysis of Technetium and Rhenium Nitrosyl Complexes”. Communications in Inorganic Synthesis 3, no. 3 (September 19, 2015). Accessed August 19, 2019. http://www.revistas.usach.cl/ojs/index.php/Inorganic/article/view/2259.