000 00392nam a2200133Ia 4500
008 210917s9999 xx 000 0 und d
082 _a004 .D1:59
100 _aDigit July 2020,
245 0 _aASTRONOMY SOFTWARE
260 _aNew Delhi
260 _b Digit
260 _c2020
942 _cCD
999 _c154041
_d154041