@article{RLINA_1976_8_61_5_a10,
     author = {Chen, Lu-San and Yeh, Cheh-Chih},
     title = {On the positive bounded {Solutions} of linear delay higher order differential equations},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti della Classe di scienze fisiche, matematiche e naturali},
     pages = {376--381},
     publisher = {mathdoc},
     volume = {Ser. 8, 61},
     number = {5},
     year = {1976},
     zbl = {0384.34047},
     mrnumber = {0492716},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLINA_1976_8_61_5_a10/}
}