@misc{1201401, author = {P Kopetka and R E Williams and J M Rowe}, title = {NIST liquid hydrogen cold source:}, year = {2006}, month = {2006-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.7352}, language = {en}, }