@article{10_4153_CMB_1994_006_0,
     author = {Deveney, James K. and Finston, David R.},
     title = {Fields of {Ga} {Invariants} are {Ruled}},
     journal = {Canadian mathematical bulletin},
     pages = {37--41},
     year = {1994},
     volume = {37},
     number = {1},
     doi = {10.4153/CMB-1994-006-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-006-0/}
}