Gilewicz, J., and M. Pindor. “On the Relation Between Measures Defining the Stieltjes and the Inverted Stieltjes Functions”. Ukrains’kyi Matematychnyi Zhurnal, vol. 62, no. 3, Mar. 2010, pp. 327–331, https://umj.imath.kiev.ua/index.php/umj/article/view/2871.