Phenomenology (philosophy) which focusses on the work and followers of Edmund Husserl (April 8, 1859 – April 26, 1938).
Existential phenomenology which focusses on the work and followers of Martin Heidegger (September 26, 1889 – May 26, 1976), himself a follower of Husserl.
Dialectical phenomenology which focusses on the earlier work of Georg Hegel (August 27, 1770 – November 14, 1831).
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