Notes of welcome

@article{Berge1985NotesOW,
  title={Notes of welcome},
  author={Claude Berge and Paul Erd{\"o}s and Sin Hitotumatu and Loo Keng Hua and Richard Rado},
  journal={Graphs and Combinatorics},
  year={1985},
  volume={1},
  pages={3-6}
}