Meva, F. E., Prior, T. J., Evans, D. J., & Mang, E. R. (2017). Crystal structures of N ′-Aminopyridine-2-carboximidamide and N ′-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide. Acta Crystallographica Section E: Crystallographic Communications, 73(7), 1021-1025. https://doi.org/10.1107/s2056989017008416