@article{Varon:86294,
      author        = "Varon, Carolina and Lázaro Plaza, Jesús and Bolea, Juan
                       and Hernando, Alberto and Aguiló, Jordi and Gil, Eduardo
                       and Van Huffel, Sabine and Bailón, Raquel",
      title         = "{Unconstrained estimation of HRV indices after removing
                       respiratory influences from heart rate}",
      year          = "2019",
}