S. Muralidharan1, P. Nagap, T. Srinivasan2, Y. Vidyalakshmi1, D. Velmurugan2, and R. Gopalakrishnan1, “Single Crystal Structure and Characterization of 2-Amino-4-methylpyridinium-4-nitrophenolate-4-nitrophenol”, ajc, vol. 25, no. 18, pp. 10107–10112, Dec. 2013.