TY - GEN AU - Uhlig, Kurt T1 - (3)He/(4)He dilution refrigerator with high cooling capacity and direct pulse tube pre-cooling CY - PY - 2008 PB - T3 - Cryogenics VL - 48 UR - http://dx.doi.org/10.1016/j.cryogenics.2008.07.004 SN - 0011-2275