Complex sentence: Alexander, together with Professor Józef Bánóczi, later edited a seminal series of books on philosophers, the "Filosofiai Irók Tára", for which he did translations and annotations of René Descartes, David Hume, and the "Prolegomena" to Immanuel Kant.
Split into simpler sentences: Alexander, together with Prof. Józef Bánóczi, later edited the "Filosofiai Irók Tára" series. Among its volumes were his popular translations, to which he has added annotations, of René Descartes, David Hume, and the "Prolegomena" to Immanuel Kant.