@article{RSMUP_1967__37__230_0,
     author = {Carlitz, L.},
     title = {A summation theorem for double hypergeometric series},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {230--233},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {37},
     year = {1967},
     mrnumber = {213616},
     zbl = {0145.29704},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1967__37__230_0/}
}