@article{leonard_mattheis_1965, 
  title={Different Transforming Characteristics of Colonial Variants from Auxotrophic Mutants of Bacillus licheniformis}, 
  volume={90}, 
  DOI={10.1128/jb.90.2.558-559.1965}, 
  publisher={American Society for Microbiology}, 
  author={Leonard, C. Gomez and Mattheis, M. J.}, 
  year={1965}
  }