@inbook{+2008+4+41,
url = {https://doi.org/10.4159/9780674020498-002},
title = {ONE. A Momentous Problem},
booktitle = {Who Owns the Sky?},
booktitle = {The Struggle to Control Airspace from the Wright Brothers On},
publisher = {Harvard University Press},
address = {Cambridge, MA and London, England},
pages = {4--41},
doi = {doi:10.4159/9780674020498-002},
isbn = {9780674020498},
year = {2008},
lastchecked = {2026-05-07}
}