KalanchaA. K., and MaslyuchenkoV. K. “Lebesgue–Cech Dimensionality and Baire Classification of Vector-Valued Separately Continuous Mappings”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 55, no. 11, Nov. 2003, pp. 1576-9, https://umj.imath.kiev.ua/index.php/umj/article/view/4025.