@misc{1189221, author = {R M Jickling and J F Shafer}, title = {Repeaters for law enforcement communication systems:}, year = {1973}, month = {1973-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.74-356}, language = {en}, }