@article{AFM_2009_34_1_a6,
     author = {Janne Heittokangas and Risto Korhonen and Jouni R\"atty\"a},
     title = {Growth estimates for solutions of nonhomogeneous linear complex differential equations},
     journal = {Annales Fennici Mathematici},
     pages = {145--156},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2009_34_1_a6/}
}