@article{SteinertThamsenFelgentreffetal.2015,
  author    = {Bastian Steinert and Lauritz Thamsen and Tim Felgentreff and Robert Hirschfeld},
  title     = {Object Versioning to Support Recovery Needs Using Proxies to Preserve Previous Development States in Lively},
  journal   = {ACM SIGPLAN notices},
  volume    = {50},
  number    = {2},
  pages     = {113 -- 124},
  doi       = {10.1145/2661088.2661093},
  year      = {2015},
}