外国産及び本邦産こはくの産地分析
Origin of foreign and Japanese ambers studied by elemental analyses and infrared spectroscopy

Taitiro FUJINAGA, Tohru TAKENAKA, Teruko MUROGA
1976 Bunseki Kagaku  
doi:10.2116/bunsekikagaku.25.795 fatcat:u35inenhhjdbpdhz336dlqumpy