Global VLBI observations of the gravitational lens system 0957+561 A,B

@inproceedings{Garrett1994GlobalVO,
  title={Global VLBI observations of the gravitational lens system 0957+561 A,B},
  author={Michael A. Garrett and Richard J Calder and Richard W. Porcas and Lindsay J. King and D. Walsh and Peter N. Wilkinson},
  year={1994}
}