% Testing date formats for various localisations
@book{datetest1,
  AUTHOR         = {A},
  DATE      = {2020}
}
@book{datetest2,
  AUTHOR         = {B},
  DATE      = {2020-07}
}
@book{datetest3,
  AUTHOR         = {C},
  DATE      = {2020-07-16}
}
@book{datetest4,
  AUTHOR         = {D},
  DATE      = {2020-07-12/2020-07-14}
}
@book{datetest5,
  AUTHOR         = {E},
  DATE      = {2020-07-12/2020-08-14}
}
@book{datetest6,
  AUTHOR         = {F},
  DATE      = {2020-07-12/2021-07-14}
}
@book{datetest7,
  AUTHOR         = {G},
  DATE      = {2020-07/2020-08}
}
@book{datetest8,
  AUTHOR         = {H},
  DATE      = {2020-07/2021-08}
}
@book{datetest9,
  AUTHOR         = {I},
  DATE      = {2020-07/2021-07}
}