@article{EngelBoenischSchwarzenbergeretal.2016,
  author    = {Andreas Engel and Harald B{\"o}nisch and Tim Schwarzenberger and Hans-Peter Haase and Katja Grunow and Jana Abalichin and Stephan Sala},
  title     = {Long-term validation of ESA operational retrieval (version 6.0) of MIPAS Envisat vertical profiles of methane, nitrous oxide, CFC11, and CFC12 using balloon-borne observations and trajectory matching},
  journal   = {Atmospheric measurement techniques},
  volume    = {9},
  pages     = {1051 -- 1062},
  doi       = {10.5194/amt-9-1051-2016},
  year      = {2016},
}