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These pictures are prohibited to use without the permission by Yoshinori Furukawa. If you want use these pictures, please contact to the following address.Copyright of pictures
Yoshinori Furukawa Institute of Low Temperature Science Hokkaido University Sapporo 060-0819, Japan TEL +81-11-706-5467 FAX +81-11-706-7142 E-MAIL frkw@lowtem.hokudai.ac.jp