TY - GEN AU - K. Uhlig, W. Hehn T1 - HE-3-HE-4 DILUTION REFRIGERATOR WITH GIFFORD-MCMAHON PRECOOLING CY - PY - 1993 PB - T3 - Cryogenics VL - 33 UR - http://dx.doi.org/10.1016/0011-2275(93)90204-2 SN - 0011-2275