@misc {IOPORT.71021566,
    author       = {Di Crescenzo, Giovanni},
    title        = {A non-iterative electronic cash system},
    howpublished = {CIAC, 109-124 (1994).},
    year         = {1994},
    doi          = {10.1007/3-540-57811-0_10},
    identifier   = {71021566},
}