@misc{indiciaecb1001d23a34,
  title = {The D.V.L. Gliding-angle Control : W. Hubner Design},
  author = {Hubner, Walter and Pleines, Wilhelm},
  year = {1933},
  url = {https://ntrs.nasa.gov/citations/19930094719},
  note = {Source identifier: 19930094719}
}