[[1] BUKOVSK´Y, L.: Structure of the Real Line, (to appear).]Search in Google Scholar
[[2] BUKOVSK´Y, L.: On wQN<sub>*</sub> and wQN<sup>*</sup> spaces, Topology Appl. 156 (2008), 24-27.10.1016/j.topol.2007.10.010]Search in Google Scholar
[[3] SAKAI, M.: Selection principles and upper semicontinuous functions, Colloq. Math. 117 (2009), 251-256.10.4064/cm117-2-7]Search in Google Scholar
[[4] OHTA, H.-SAKAI, M.: Sequences of semicontinuous functions accompanying continuousfunctions, Topology Appl. 156 (2009), 2683-2906.10.1016/j.topol.2009.07.017]Search in Google Scholar