Koetschau, Klostermann, Baehrens. Origenes Werke [GCS Ed.]. 1899-19.
The Internet Archive project is digitizing big lots of the GCS series, as alone volumes or specific series/opera omnia. The works of Origen [the first 7 volumes of Origenes Werke] are now available for the use and consult by the community, and we hope that some other authors will be…