Burban, I. I., and I. M. Burban. “Twist Functors and <i>D</I&gt;-Branes”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 57, no. 1, Jan. 2005, pp. 18–31, https://umj.imath.kiev.ua/index.php/umj/article/view/3571.