Feng Wang 0020 Chin-Chen Chang 0001 Wan-Li Lyu The credit card visual authentication scheme based on GF(28) field. 11451-11465 2015 74 Multim. Tools Appl. 24 https://doi.org/10.1007/s11042-014-2238-1 https://www.wikidata.org/entity/Q56916218 db/journals/mta/mta74.html#WangCL15