@article{10_4153_CMB_1989_073_1,
     author = {Stewart, Patrick N.},
     title = {Projective {Socles}},
     journal = {Canadian mathematical bulletin},
     pages = {498--499},
     year = {1989},
     volume = {32},
     number = {4},
     doi = {10.4153/CMB-1989-073-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1989-073-1/}
}