Scattering of NH3 and ND3 with rare gas atoms at low collision energy (https://pubmed.ncbi.nlm.nih.gov/26567658/)
Radiation Damage in Polarized Ammonia Solids (https://pubs.aip.org/aip/acp/article/980/1/330/639824/Radiation-Damage-in-Polarized-Ammonia-Solids)
Analysis of the Ammonia Target Polarization (https://pubs.aip.org/aip/acp/article/980/1/322/639825/Analysis-of-the-Ammonia-Target-Polarization)