History of the gamma-ray light curves of the pulsars PSR0531 plus 21 and PSR0833-45 as measured by COS-B
Caraveo, P. A.; Bignami, G. F.; Hermsen, W.; Masnou, J. L.; Bennett, K.; Buccheri, R.; Kanbach, G.; Mayer-Hasselwander, H. A.; Paul, J. A.; Wills, R. D.
Netherlands, Italy, France