@article{Jankiewicz:2005,
  author  = "J. Jankiewicz",
  title   = "Diagonal matrix elements of the effective Hamiltonian for Ko - Ko system in one pole approximation",
  journal = "Acta Physica Polonica B",
  volume  = "Vol. 36",
  number  = "no 6",
  pages   = "1901--1919",
  year    = "2005",
}