RT Book T1 Erkenntnis und Irrtum: Skizzen zur Psychologie der Forschung A1 Mach, Ernst 1838-1916 LA German PP Leipzig PB Barth YR 1905 UL https://ixtheo.de/Record/336977360 CN 121 K1 Knowledge, Theory of K1 Mach, Ernst, 1838 - 1916 K1 Science - Methodology K1 Science - Philosophy K1 Thought and thinking