@Book{Cohen_1998_7701,
  author = {Cohen, J.},
 edition = {2nd},
 publisher = {Hillsdale, NJ: Lawrence Erlbaum Associates},
 title = {Statistical power analysis for the behavioral sciences},
 year = {1998},
 isbn = {0-8058-0283-5},
 title_with_no_special_chars = {Statistical power analysis for the behavioral sciences}
}