References outside the SPLC Challenge track
Apo-Games case study has its own entry in the ESPLA Catalog
(extractive SPL adoption catalog of case studies).
Previous to the Challenge paper, we can find two main references to the case study.
Variant-Preserving Refactorings for Migrating Cloned Products to a Product Line
Wolfram Fenske, Jens Meinicke, Sandro Schulze, Steffen Schulze, and Gunter Saake
SANER 2017, International Conference on Software Analysis, Evolution and Reengineering, 2017
Finding Lost Features in Cloned Systems
Jacob Krüger, Louis Nell, Wolfram Fenske, Gunter Saake, Thomas Leich
SPLC 2017 REVE workshop, International Systems and Software Product Line Conference, 2017
After the Challenge paper, we can also find this reference outside of the SPLC Challenge track
Towards an Automated Product Line Architecture Recovery: The Apo-Games Case Study
Crescencio Lima, Wesley K. G. Assunção, Jabier Martinez, Christina von Flach G. Chavez, Willian D. F. Mendonça
SBCARS '18 Proceedings of the VII Brazilian Symposium on Software Components, Architectures, and Reuse, Pages 33-42, Sao Carlos, Brazil — September 17 - 21, 2018