@misc{1154671, author = {R D Elbourn}, title = {Simulation of air traffic control radar beacon code assignment plans ::final report}, year = {1971}, month = {1971-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.568}, language = {en}, }