@article{DBLP:journals/fac/LaraG21,
  author       = {Juan de Lara and Esther Guerra},
  title        = {Language Family Engineering with Product Lines of Multi-level Models},
  journal      = {Formal Aspects Comput.},
  volume       = {33},
  number       = {6},
  pages        = {1173--1208},
  year         = {2021},
  url          = {https://doi.org/10.1007/s00165-021-00554-3},
  doi          = {10.1007/S00165-021-00554-3},
}