@article{700694,
     title = {Generation of Baire sets},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {187-194},
     mrnumber = {MR0464204},
     zbl = {0393.54011},
     url = {http://dml.mathdoc.fr/item/700694}
}

Jayne, J. E. Generation of Baire sets, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. 187-194. http://gdmltest.u-ga.fr/item/700694/