@misc{indiciaef6e75dcbf59e,
  title = {General Group-theoretic Transformations from Boundary Value to Initial Value Problems},
  author = {Hansen, A. G. and Na, T.-Y.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680013845},
  note = {Source identifier: 19680013845}
}