@article{10_4064_am_7_1_59_76,
     author = {T Iwi\'nski},
     title = {On a certain class of linear differential equations},
     journal = {Applicationes Mathematicae},
     pages = {59--76},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1963},
     doi = {10.4064/am-7-1-59-76},
     zbl = {0128.30704},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-7-1-59-76/}
}