who has served as president of finland?
k. j. stahlberg, lauri kristian relander, p. e. svinhufvud, kyosti kallio, risto ryti, gustaf mannerheim, j. k. paasikivi, urho kekkonen, mauno koivisto, martti ahtisaari, tarja halonen, sauli niinisto
of these, who is named mauno koivisto or martti ahtisaari?
mauno koivisto, martti ahtisaari
of these, who served more terms in office?
mauno koivisto