Husserl, E. (2008). Introduction to Logic and Theory of Knowledge: Lectures 1906/07. Springer Netherlands. https://doi.org/10.1007/978-1-4020-6727-3

Husserl, Edmund. Introduction to Logic and Theory of Knowledge: Lectures 1906/07. Dordrecht: Springer Netherlands, 2008. https://doi.org/10.1007/978-1-4020-6727-3.

Husserl, Edmund. Introduction to Logic and Theory of Knowledge: Lectures 1906/07. Springer Netherlands, 2008. https://doi.org/10.1007/978-1-4020-6727-3.