@article{macgibbon_1970, 
  title={A necessary and sufficient condition for the embedding of a Lindelof space in a Hausdorff 𝒦σspace}, 
  volume={35}, 
  DOI={10.2140/pjm.1970.35.459}, 
  publisher={Mathematical Sciences Publishers}, 
  author={MacGibbon}, 
  year={1970}, 
  month={Nov}
  }