1. M. Nisenofif, Cryocoolers and high temperature superconductors: advancing toward commercial applications, Cryocoolers 8: 913 (1995).
2. J.W.M. Hilgenkamp, F.J.G. Roesthuis, and S. Hoogeveen, Monolithic flux transformer coupled high-TC dc SQUID magnetometer, Proc. of HTS-workshop on applications and new materials, 8–10 May 1995, Enschede, The Netherlands: in press (1995).
3. T.H. Clynne, J.R. McCoy, P.E Kimak, M. Kimak, Commercial low cost cryogenic packaging for linear micro-coolers, Cryocoolers 8: 949 (1995).
4. G. Kaiser, P. Seidel, M. Thürk, Noise reduction of cryo-refrigerators, Adv. in Cryog. Eng. 39: 1281 (1993).
5. B.G. Williams, J.C. Batty, Incorporating a mechanical refrigerator with a refreezable cryogen in space applications, Cryocoolers 7: 1043 (1993).