@misc{indiciaec38a333b11ca,
  title = {Program engineering: systems engineering at the program level},
  author = {Easter, B. and Pomphrey, R. and Weisbin, C.},
  year = {2002},
  url = {https://ntrs.nasa.gov/citations/20060030521},
  note = {Source identifier: 20060030521}
}