Ali Zolfigol, Mohammad, Farhad Shirni, Arash Ghorbani Choghamarani, Aazam Shiri, Hassan Keypour, and Sadegh Salehzadeh. “Chemoselective N-Nitrosation of Secondary Amines under Mild and Heterogeneous Conditions With ZrCl4 NaNO2”. Asian Journal of Chemistry 13, no. 3 (March 30, 2010): 849–853. Accessed November 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/22700.