@article{Denecke2019,
  author    = {Klaus-Dieter Denecke},
  title     = {The partial clone of linear formulas},
  journal   = {Siberian mathematical journal},
  volume    = {60},
  number    = {4},
  pages     = {572 -- 584},
  doi       = {10.1134/S0037446619040037},
  year      = {2019},
}