@article{PORMA_1985__43_3_114514,
     author = {Campos, L.M.B.C.},
     title = {On rules of derivation with complex order for analytic and branched functions},
     journal = {Portugaliae mathematica},
     pages = {347--376},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {1985},
     mrnumber = {0886461},
     zbl = {0603.30007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1985__43_3_114514/}
}