{"version":"1.0","type":"link","title":"Counter-machine model - Newikis","description":"There are many variants of the counter machine, among them those of Hermes, Ershov, Péter, Minsky, Lambek, Shepherdson and Sturgis, and Schönhage. These are explained below.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}