1. Classic, Tool-Driven Variability Mechanisms
2. Preprocessor conditional removal by simple partial evaluation
3. Behringer, Benjamin, Projectional Editing of Software Product Lines – The PEoPL Approach, Faculty of Sciences, Technology and Communication, Université de Luxembourg, 2017, jul, https://orbilu.uni.lu/bitstream/10993/31982/1/DissertationBehringerOnePage.pdf, 7
4. Blendinger, Frank, A Filesystem-Based Approach to Support Product Line Development with Editable Views, Department of Computer Sciences 4, Friedrich-Alexander University Erlangen-Nuremberg, 2010, Diploma Thesis, aug, http://www4.cs.fau.de/ wanja/documents/frank.blendinger-a.filesystem.based.approach.to.support.product.line.development.with.editable.views.pdf, 8
5. The ML/I macro processor