@article{PORMA_1951__10_4_114529,
     author = {Curry, Haskell B.},
     title = {Abstract differential operators and interpolation formulas},
     journal = {Portugaliae mathematica},
     pages = {135--162},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {1951},
     mrnumber = {0045778},
     zbl = {0045.17602},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1951__10_4_114529/}
}