An examination of Kulpe's experiments on abstraction

[1] ACH N, 1905, WISSENSTATIGKEIT DEN, P239

[2] ACHENBACH E, 1916, ARCH GES PSYCHOL, V35, P535

[3] FORBES J, 1920, LEHRBUCH EXPT PSYCHO, P190

[4] GRUNBAUM, 1919, ARCH GES PSYCHOL, V38, P173

[5] GRUNBAUM AA, 1908, ARCH GES PSYCHOL, V12, P346

[6] KOCH A, 1913, Z ANGEW PSYCHOL, V7, P337

[7] LINDWORKSY J, 1922, HDB BIOLOGIDCHEN ARB, V2, P168

[8] MITTENZWEY, 1907, PSYCHOL STUDIEN, V2, P480

[9] MOORES TV, 1910, U CALIFORNIA PUBL PS

[10] PAULI R, 1923, PSYCHOLOGISCHE PRAKT, P180

[1] ACH N, 1905, WISSENSTATIGKEIT DEN, P239

[2] ACHENBACH E, 1916, ARCH GES PSYCHOL, V35, P535

[3] FORBES J, 1920, LEHRBUCH EXPT PSYCHO, P190

[4] GRUNBAUM, 1919, ARCH GES PSYCHOL, V38, P173

[5] GRUNBAUM AA, 1908, ARCH GES PSYCHOL, V12, P346

[6] KOCH A, 1913, Z ANGEW PSYCHOL, V7, P337

[7] LINDWORKSY J, 1922, HDB BIOLOGIDCHEN ARB, V2, P168

[8] MITTENZWEY, 1907, PSYCHOL STUDIEN, V2, P480

[9] MOORES TV, 1910, U CALIFORNIA PUBL PS

[10] PAULI R, 1923, PSYCHOLOGISCHE PRAKT, P180