@article{anunsupervisedmethodforestimatingthe,
  title = {An Unsupervised Method for Estimating the Global Horizontal Irradiance from Photovoltaic Power Measurements},
  author = {Lorenzo Nespoli and Vasco Medici},
  year = {2017},
  eprint = {1706.06878},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1706.06878v3},
}