New VLA observations of the SNR Puppis A: the radio properties and the   correlatoin withe the X-ray emission
  In this paper we report on a new study of the SNR Puppis A based on VLA observations at 1425 MHz; the improvement represents a factor of two in angular resolution and almost ten times in sensitivity compared to the best previous image of Puppis A. This new image is used to compare with re-processed 327 MHz data and ROSAT and Chandra images to investigate morphological and spectral characteristics. 
G. Castelletti, G. Dubner, K. Golap and W. M. Goss