@misc{indiciaedcf6799b3561,
  title = {Sewage sludge additive},
  author = {Kalvinskas, J. J. and Mueller, W. A. and Ingham, J. D.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19820003761},
  note = {Source identifier: 19820003761}
}