1. Technical and economical demands on 25–77K refrigerators for future HTS-series products in power engineering;Gromoll,2004
2. A commercial pulse tube cryocooler with 200W refrigeration at 80K;Zia,2005
3. Development of a single stage pulse tube refrigerator with linear compressor;Yuan,2005
4. Development of a large-capacity Stirling-type pulse tube refrigerator;Potratz,2006
5. Design of a very large pulse tube cryocooler for HTS cable applications;Tanchon,2006