Samoilenko, Yu. I. “Coherentization of the Energy of Heat Fluctuations by a Two-Channel Bilinear Control System”. Ukrains’kyi Matematychnyi Zhurnal, vol. 59, no. 11, Nov. 2007, pp. 1557–1573, https://umj.imath.kiev.ua/index.php/umj/article/view/3411.