@misc{1188061, author = {Donald C Robinson}, title = {Mechanical tests of FAA-E-2491 airport in-pavement approach and threshold lights:}, year = {1975}, month = {1975-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.75-647}, language = {en}, }