%0 Journal Article %T GOLD2012¡ª6th International Conference on Gold Science, Technology and its Applications, September 5¨C8, 2012, Keio Plaza Hotel, Tokyo, Japan %A Takashi Takei %J Gold Bulletin %@ 2190-7579 %D 2012 %I Springer %R 10.1007/s13404-012-0055-8 %U http://link.springer.com/article/10.1007/s13404-012-0055-8