1. Vuilleumier R (1918) Method and apparatus for inducing heat changes. US Patent 1.275.507
2. Martini WR (1978) Stirling engine design manual. DOE/ NASA/3152-78/1 NASA CR 135382, NTIS Report No. 78 N 23999
3. Eder FX (1982) A thermally actuated heat pump. International Journal of Refrigeration, Vol. 5, Nr. 2, 86–90
4. Walker G (1983) Cryocoolers Part I and II. Plenum Press, New York
5. Kühl HD, Richter N, Schulz S (1986) Der Vuilleumier-Prozeß als Wärmepumpe, gwf-gas/erdgas, Vol. 127, Nr. 5, 205–210