@article{han1985calendars,
  title = {Calendars and Vietnamese calendar},
  author = {HAN, Hoang Xuan},
  xn-author = {han, hoang xuan},
  journal = {Vietnamese Studies},
  xn-pub = {Vietnamese Studies},
  year = {1985},
  volume = {6},
  address = {Hanoi},
  keywords = {Vietnam;History},
  x-date = {1985},
  BAS = {251856},
  check = {han:1985:calendars},
  source = {bas},
}