Gutzmer, August (1860-1924)(10)
Kraepelin, Karl (1848-1915)(5)
Lietzmann, Walter (1880-1959)(4)
Böttinger, Henry Theodor von (1848-)(3)
Peters, Theodor (1841-1908)(3)
Ackermann, Alfred (1857-1941)(2)
B. G. Teubner (Leipzig) (1811-1830)(2)
Bardeleben, Karl von (1849-1918)(2)
International Commission on the Teaching of Mathematics (1908-1952)(2)