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Yada, Yuji; Ito, Koji; Yamaguchi, Yoshikazu; Furukawa, Taiichi; Miyamatsu, Takashi; Wang, Yong; Hieda, Katsuhiko; Shimokawa, Tsutomu; Lin, Qinghuang . (2006). SPIE Proceedings [SPIE SPIE 31st International Symposium on Advanced Lithography - San Jose, CA (Sunday 19 February 2006)] Advances in Resist Technology and Processing XXIII - <title>Application of high-refractive index fluid to KrF-immersion lithography</title>. , 6153(), 61531W–61531W-9. doi:10.1117/12.655983 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research