Jahres...Berlin Literatur des Jahres 1899 Berlin 1900, B.i Astronomischer Jahresbericht...herausgegeben von A.Berberich. Die Literatur des " " " 1900 " 1901 " II " " " 1901 " 1902 " III " " " 1902 " 1903 " IY " " " 1903 " 1904 " Y " " " 1904 " 1905 " YI " " " 1905 " 1906 " YII " " " 1906 " 1907 " YIII " " " 1907 " 1908 " IX " " " 1908 " 1909 " X " " " 1909 " 1910 " XI " " " 1910 " 1911 " XII " " " 1911 " 1912 " XIII " " " 1912 " 1913 " XIY " " " 1913 " 1914 " XY " " " 1914 " 1915 " XYI " " " 1915 " 1916 " XYII " " " 1916 " 1917 " XYIII " " " 1917 " 1918 " XIX " " " 1918 " 1920 " XX " " " 1919 " 1921 " XXI " " " 1920 " 1922 " XXII " " " 1921 " 1923 " XXIII " " " 1922 " 1924 " XXIY " " " 1923 " 1925 " XXY " " " 1924 " 1926 " XXYI " " " 1925 " 1926 Bd.XXYII " " " 1926 " 1927 " XXYIII " " " 1927 " 1928 " XXIX " " " 1928 " 1929 " XXX 1963 (1965) Bd.63