@article{MAN_1995__303_4_165370,
     author = {Hermann Render},
     title = {Countably determined sets and a conjecture of {C.W.} {Henson.}},
     journal = {Mathematische Annalen},
     pages = {307--324},
     publisher = {mathdoc},
     volume = {303},
     number = {4},
     year = {1995},
     zbl = {0838.54029},
     url = {http://geodesic.mathdoc.fr/item/MAN_1995__303_4_165370/}
}