@article{10_4064_fm_142_1_1_18,
     author = {H. Mildenberg},
     title = {A rigid {Boolean} algebra that admits the elimination of {Q21}},
     journal = {Fundamenta Mathematicae},
     pages = {1--18},
     publisher = {mathdoc},
     volume = {142},
     number = {1},
     year = {1993},
     doi = {10.4064/fm-142-1-1-18},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-142-1-1-18/}
}