@article{retrievalofabovegroundcropnitrogen,
  title = {Retrieval of aboveground crop nitrogen content with a hybrid machine learning method},
  author = {Katja Berger and Jochem Verrelst and Jean-Baptiste Féret and Tobias Hank and Matthias Wocher and Wolfram Mauser and Gustau Camps-Valls},
  year = {2020},
  eprint = {2012.05043},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2012.05043v1},
}