@incollection{Marques11,
author = {Luís Campos and Joaquim Marques},
title = {Collision Probabilities, Aircraft Separation and Airways Safety},
booktitle = {Aeronautics and Astronautics},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Max Mulder},
chapter = {22},
doi = {10.5772/21468},
url = {https://doi.org/10.5772/21468}
}