A comparison of pulse shapes of pulsars at different frequencies McCulloch, P. M. ; Hamilton, P. A. ; Komesaroff, M. M. ; Cooke, D. J. Abstract Publication: Publications of the Astronomical Society of Australia Pub Date: March 1969 DOI: 10.1017/S1323358000011644 Bibcode: 1969PASA....1..225M