Cryogenics:
- Data Book for Cryogenics Gases and Equipment (10517513.Rev B.Databook (chartindustries.com))
- Conversion Tables of Gases (Conversion Charts (cts-my.com))
- Practical Cryogenics (http://research.physics.illinois.edu/bezryadin/links/practical%20Cryogenics.pdf)
- Cryogenic Conferences (https://www.slac.stanford.edu/econf/C0605091/proceedings.htm)
Non-Cryogenics:
Target material:
- Radiation Damage in Polarized Ammonia Solids (https://aip.scitation.org/doi/abs/10.1063/1.2888105)