D. A. Lega, V. P. Chernykh, and L. A. Shemchuk, “The study of the three-component interaction between 1-ethyl-1H-2,1-benzothiazin-4(3H)-one 2,2-dioxide, heterylcarbaldehydes and active methylene nitriles”, J. Org. Pharm. Chem., vol. 14, no. 1(53), pp. 6–16, Mar. 2016.