@book{643,
  keywords = {Case method, Social sciences Case studies Methodology, Social sciences Methodology},
  author = {Roge Gomm and Marty Hammersley and Peter Foster},
  title = {Case study method : key issues, key texts},
  year = {2000},
  publisher = {SAGE},
  address = {London ; Thousand Oaks, Calif.},
  isbn = {761964134},
}