@article{ARM_1991_27_3-4_a3,
     author = {Kreith, Kurt},
     title = {Initial value parameters corresponding to positive {Green's} functions},
     journal = {Archivum mathematicum},
     pages = {161--166},
     year = {1991},
     volume = {27},
     number = {3-4},
     mrnumber = {1189211},
     zbl = {0759.34028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1991_27_3-4_a3/}
}