@article{10_4064_fm_115_2_107_118,
     author = {John Burgess and Richard Lockhart},
     title = {Classical hierarchies form a modern standpoint. {Part} {III.} {BP-sets}},
     journal = {Fundamenta Mathematicae},
     pages = {107--118},
     publisher = {mathdoc},
     volume = {115},
     number = {2},
     year = {1983},
     doi = {10.4064/fm-115-2-107-118},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-115-2-107-118/}
}