@inbook{8679,
  author = {S. Saar and C. Schrijver},
  title = {Empirical relations between magnetic fluxes and atmospheric radiative losses for cool dwarf stars},
  year = {1987},
  volume = {291},
  number = {Lecture Notes in Physics},
  pages = {38-40},
  publisher = {Springer Berlin Heidelberg},
  address = {Berlin, Heidelberg},
  isbn = {978-3-540-18653-3},
  doi = {10.1007/3-540-18653-0_102},
}