@article{HoefnerKhedriMoeller2006,
  author    = {Peter H{\"o}fner and Ridha Khedri and Bernhard M{\"o}ller},
  title     = {Feature algebra},
  journal   = {Lecture Notes in Computer Science},
  volume    = {4085},
  pages     = {300 -- 315},
  doi       = {10.1007/11813040_21},
  year      = {2006},
}