@article{Ellison1971,
  author    = {{W. J. Ellison}},
  title     = {{On a Theorem of S. Sivasankaranarayana Pillai}},
  journal   = {{Séminaire de théorie des nombres de Bordeaux}},
  year      = {{1971}},
  volume    = {{1970-1971}},
  number    = {{10}},
  pages     = {{1--10}},
  url       = {{https://www.numdam.org/article/STNB_1970-1971____A10_0.pdf}},
}