@article{Alawdin:2011,
  author  = "P. Alawdin and K. Urbańska",
  title   = "Limit analysis of steel-concrete composite structures with slip",
  journal = "Civil and Environmental Engineering Reports",
  volume  = "No. 7",
  pages   = "19--34",
  year    = "2011",
  note    = "University of Zielona Góra Press, Zielona Góra",
}