@article{behrens_1970, 
  title={The corona conjecture for a class of infinitely connected domains}, 
  volume={76}, 
  DOI={10.1090/s0002-9904-1970-12487-9}, 
  publisher={American Mathematical Society (AMS)}, 
  author={Behrens}, 
  year={1970}, 
  month={Mar}
  }