Cherniga, R. M., and J. Waniewski. “Exact Solutions of a Mathematical Model for Fluid Transport in Peritoneal Dialysis”. Ukrains’kyi Matematychnyi Zhurnal, vol. 57, no. 8, Aug. 2005, pp. 1112–1119, https://umj.imath.kiev.ua/index.php/umj/article/view/3668.