1. The free piston Stirling engine: 20 years of development;Beale;Proc of 18th Intersociety Energy Conversion Eng Conf, no 839111, Orlando, Florida, USA,1982
2. Flat plate and discontinues motion stirling engine;Kolin;Poster at 5th Int Stirling Engine Conf, Dubrovnic, Croatie,1991
3. Mechanical efficiency considerations in the design of ultra low temperature differential stirling engine;Sneft;Proc of 27th IECEC, no 929024, San Diego, California, USA,1992
4. The efficiency of atomic station;Novikov;Atomnaya Energiya,1958