M. Oktav, S. Rollas, and E. N. Gencoglu, “Optical and Printability Properties of 2-[4-(Aminosulfonyl)- phenyl]hydrazono]-N-(4-ethoxyphenyl)-3-oxobutanamide”, ajc, vol. 22, no. 3, pp. 1944–1948, Mar. 2010.