Houshasei youso I-131 touyo kanja no kitaku kijun oyobi ippan byoushitsu e no kishitsu kijun no kenkyuu

Kasokuki shitsuryou bunsekihou (AMS) ni yoru bunkazai shiryou no houshasei tanso (14C) nendai sokutei : sono kisoteki kenkyuu to komonjo e no tekiyou