N. Arzoumanian, &. Taylor, and . Thorsett, Timing behavior of 96 radio pulsars, The Astrophysical Journal, vol.422, p.671, 1994.
DOI : 10.1086/173760

. Cheng and R. Ho, Energetic radiation from rapidly spinning pulsars. I - Outer magnetosphere gaps. II - VELA and Crab, The Astrophysical Journal, vol.300, p.500, 1986.
DOI : 10.1086/163829

R. Romani, A unified model of neutron-star magnetic fields, Nature, vol.347, issue.6295, p.741, 1990.
DOI : 10.1038/347741a0

N. A. Webb, spectral and timing observations of the millisecond pulsar PSR J0218+4232, Astronomy and Astrophysics, vol.417, issue.1, p.181, 2004.
DOI : 10.1051/0004-6361:20040032

N. A. Webb, XMM-Newton spectral and timing analysis of the faint millisecond pulsars PSR??J0751+1807 and PSR??J1012+5307, Astronomy & Astrophysics, vol.419, issue.1, p.269, 2004.
DOI : 10.1051/0004-6361:20040069