Modularizing constructors

@article{DBLP:journals/jot/BonoK07,
  author       = {Viviana Bono and
                  Jaroslaw D. M. Kusmierek},
  title        = {Modularizing constructors},
  journal      = {J. Object Technol.},
  volume       = {6},
  number       = {9},
  pages        = {297--397},
  year         = {2007},
  url          = {https://doi.org/10.5381/jot.2007.6.9.a15},
  doi          = {10.5381/JOT.2007.6.9.A15},
  timestamp    = {Wed, 17 Feb 2021 00:00:00 +0100},
  biburl       = {https://dblp.org/rec/journals/jot/BonoK07.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}