This document is unfortunately not available for download at the moment.
The twofold task in working out the question of being
Method and design of our investigation
Martin Heidegger
Translated by John Macquarrie, Edward Robinson
pp. 36-66
Not implemented yet !
(1953) "Die Doppelaufgabe in der Ausarbeitung der Seinsfrage", in: Heidegger Martin, Sein und Zeit, Tübingen, Niemeyer, pp.15-40.