@article{BoeckmannSarkoezi1999,
  author    = {B{\"o}ckmann, Christine and Sark{\"o}zi, Janos},
  title     = {The Ill-posed Problem of Multiwavelength Lidar Data by a Hybrid Method of Variable Projection},
  year      = {1999},
  language  = {en}
}
@article{BoeckmannSarkoeziAlthausen1999,
  author    = {B{\"o}ckmann, Christine and Sark{\"o}zi, Janos and Althausen, Dietrich},
  title     = {Collocation Methods for Ill-posed Inverse Problems of Multiwavelength Lidar Measurements and Applications on LACE 98-Data},
  year      = {1999},
  language  = {en}
}