@misc{indiciaefbca77ffbe6e,
  title = {Great Lakes all-weather ice information system},
  author = {Schertler, R. J. and Mueller, R. A. and Jirberg, R. J. and Cooper, D. W. and Heighway, J. E. and Holmes, A. D. and Gedney, R. T. and Mark, H.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750025408},
  note = {Source identifier: 19750025408}
}