Columbia subject headings:
Harvard subject headings:
Astronomers--Czechoslovakia--Biography.
Astronomy--History
Cosmography--History.
Gans, David ben Solomon, 1541-1613.
Judaism--History--Medieval and early modern period, 425-1789
Princeton subject headings:
Astronomers--Czechoslovakia--Biography.
Astronomy--History.
Cosmography--History.
Gans, David ben Solomon, 1541-1613.
Judaism--History--Medieval and early modern period, 425-1789.