Roland Wielen
Roland Wielen (born 1 January 1938) is a German astronomer, astrophysicist, university teacher, and physicist. He was born in Berlin.
His employers include Astronomical Calculation Institute.
Roland Wielen (born 1 January 1938) is a German astronomer, astrophysicist, university teacher, and physicist. He was born in Berlin.
His employers include Astronomical Calculation Institute.