@article{10_4153_CJM_1980_051_3,
     author = {Friedman, Harvey},
     title = {On {Definability} of {Nonmeasurable} {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {653--656},
     year = {1980},
     volume = {32},
     number = {3},
     doi = {10.4153/CJM-1980-051-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-051-3/}
}