1. Bjurström, H.; Raldow, W.; Int. J. Energy Res., in press
2. Carré, F.; French Patent No. 41,958 (1859)
3. Plank, R.; Z. Ges. Kälte-Ind., 43 (1936) 80–81
4. Bonauguri, E.; La Termotecnica, 7 (1961) 362–374
5. Worsjtfe-Schmidt, P.; Int. J. Refrig., 2 (1979) 75–84