@article{10_4153_CMB_2011_010_7,
     author = {Silva, Paulo L. Dattori da},
     title = {A {Note} about {Analytic} {Solvability} of {Complex} {Planar} {Vector} {Fields} with {Degeneracies}},
     journal = {Canadian mathematical bulletin},
     pages = {249--254},
     year = {2011},
     volume = {54},
     number = {2},
     doi = {10.4153/CMB-2011-010-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2011-010-7/}
}