@article{Brzostowski:1998,
  author  = "B. Brzostowski and R. Kucharczyk and M. Stęślicka",
  title   = "Surface electronic structure of periodically \delta-doped superlattice",
  journal = "Progress in Surface Science",
  volume  = "Vol. 59",
  number  = "no 1-4",
  pages   = "277--287",
  year    = "1998",
}