@article {IOPORT.50166474,
    author       = {Toffalori, Carlo and Vozoris, Kathryn},
    title        = {On complex exponentiation restricted to the integers},
    year         = {2010},
    journal      = {J. Symb. Log.},
    volume       = {75},
    number       = {3},
    pages        = {955-970},
    identifier   = {50166474},
}