About ZAITSEVA G I
About Inst. History of Material Culture, Russian Acad. Sci., St. Petersburg, SUN
About POPOV S G
About Inst. History of Material Culture, Russian Acad. Sci., St. Petersburg, SUN
About Radiocarbon
About European Russia
About Latviya
About Other isotopic dating
About ラトビア
About 放射性炭素年代測定