Abdo, A. A., Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., et al. (2010). Fermi large area telescope observations of the Vela-X pulsar wind nebula. The Astrophysical Journal, 713(1), 146-153. doi:10.1088/0004-637X/713/1/146.