@article{10_4153_CJM_1968_028_x,
     author = {Kaufman, Robert},
     title = {Problems on {Measure} {Algebras}},
     journal = {Canadian journal of mathematics},
     pages = {291--297},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-028-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-028-x/}
}