@base . "Canada" . a ; "1190-2981" ; . a ; . a . a ; "1190-2981" ; . a , ; "Astronomical calculations" . a , , ; , , ; "Astronomical calculations for the year." ; ; ; "1190-2981" ; ; "1190-2981" ; ; "1190-2981" ; "Astronomical calculations" , "Astronomical calculations for the year." ; . a ; ; "20040609183800.0"^^ ; ; . .