As a philosopher, he reacted against Hegel, his teacher in Berlin; his work was attacked by Karl Marx, and severely criticised by others. But Gruppe was rediscovered as a philosopher by Fritz Mauthner in an article on Gruppe printed in Maximilian Harden's Die Zukunft22 (Berlin, 1913). More recently, Gruppe has been interpreted as a precursor of Wittgenstein by Hans Sluga in 1980; his Gegenwart und Zukunft der Philosophie in Deutschland (1855) was reprinted in 1996.[1]
Ludwig Bernays (ed.), Otto Friedrich Gruppe 1804-1876: Philosoph, Dichter, Philologe. (Paradeigmata 3) (Freiburg-in-Breisgau: Rombach Verlag) 2004. ISBN3-7930-9377-8 (Scholia review).
Hermann-Josef Cloeren (1967). Otto Friedrich Gruppe und die sprachanalytische Philosophie. PhD thesis, Universität Münster (Westfalen)
Ludwig Bernays (ed.): Otto Friedrich Gruppe 1804–1876. Philosoph, Dichter, Philologe. Rombach, Freiburg (Breisgau) 2004, ISBN3-7930-9377-8 (Paradeigmata vol. 3).