@article{700741,
     title = {On some problems of local approximability in compact spaces},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1972},
     pages = {443-446},
     mrnumber = {MR0362230},
     zbl = {0305.54028},
     url = {http://dml.mathdoc.fr/item/700741}
}

Tironi, G.; Isler, R. On some problems of local approximability in compact spaces, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), pp. 443-446. http://gdmltest.u-ga.fr/item/700741/