@misc{indiciaec041a456aeca,
  title = {Modeling and Analysis of Power Processing Systems (MAPPS), initial phase 2},
  author = {Yu, Y. and Lee, F. C. and Wangenheim, H. and Warren, D.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780021407},
  note = {Source identifier: 19780021407}
}