@article{KanzowRaharjaSchwartz2021,
  author    = {Christian Kanzow and Andreas B. Raharja and Alexandra Schwartz},
  title     = {Sequential optimality conditions for cardinality-constrained optimization problems with applications},
  journal   = {Computational Optimization and Applications},
  volume    = {80},
  number    = {1},
  doi       = {10.1007/s10589-021-00298-z},
  year      = {2021},
}