@article{10_4153_CMB_1996_004_9,
     author = {{\DJ}okovi\'c, D. \v{Z}.},
     title = {Surjective {Linear} {Maps} {Between} {Root} {Systems} with {Zero}},
     journal = {Canadian mathematical bulletin},
     pages = {25--34},
     year = {1996},
     volume = {39},
     number = {1},
     doi = {10.4153/CMB-1996-004-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1996-004-9/}
}