@article{PORMA_1957__16_4_114793,
     author = {Al-Salam, W.A. and Carlitz, L.},
     title = {Generalized {Tur\'an} expressions for certain hypergeometric series},
     journal = {Portugaliae mathematica},
     pages = {119--127},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1957},
     mrnumber = {0098855},
     zbl = {0089.04503},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1957__16_4_114793/}
}