@misc{1192221,
  author = {Stephen R Petersen},
  title = {Retrofitting existing housing for energy conservation ::an economic analysis},
  year = {1974},
  month = {1974-01-01 05:01:00},
  publisher = {Building Science Series, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.BSS.64},
  language = {en},
}