An Advanced Dilution Refrigerator Designed for the New Lancaster Microkelvin Facility, D. J. Cousins, S. N. Fisher, A. M. Guenault, R. P. Haley, I. E. Miller, G. R. Pickett, G. N. Plenderleith, P. Skyba, P. Y. A. Thibault, and M. G. Ward, J. of Low Temp. Phys. 114, 547 (1999)
Link to paper (This machine holds the present record of low temperatures with a dilution refrigerator (1.75 mK))