@article{Brzostowski:1999,
  author  = "B. Brzostowski and R. Kucharczyk and M. Stęślicka",
  title   = "Density of states of a terminated superlattice with periodically arranged \delta-defects",
  journal = "Czechoslovak Journal of Physics",
  volume  = "Vol. 49",
  number  = "no 11",
  pages   = "1537--1545",
  year    = "1999",
}