Dimovski, Tomi, and Dončo Dimovski. “CONVERGENCE OF SEQUENCES IN (3, J, ρ)-N-METRIZABLE SPACES, J ∈ {1, 2}”. Matematichki Bilten, vol. 42, no. 1, Jan. 2018, pp. 21-26, https://doi.org/10.37560/matbil18100021d.