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between 20 mK and 1 K
Bertinat, M. P., Betts, D. S., Brewer, D. F., Butterworth, G. J.Volume:
28
Language:
english
Journal:
Physical Review Letters
DOI:
10.1103/physrevlett.28.472
Date:
February, 1972
File:
PDF, 638 KB
english, 1972