@misc{indiciaea14e7f3f3368,
  title = {Matrix Exponential in C/C++ Version of Vector Radiative Transfer Code IPOL},
  author = {Sergey Korkin and Alexei Lyapustin},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/20190002696},
  note = {Source identifier: 20190002696}
}