| Co-investigator | Nikolai Tilkidjiev, nikolai.tilkidjiev@gmail.com |
| University | Institute of Sociology, Bulgarian Academy of Sciences |
| Respondents | |
| Case number | Item code | Survey |
| 1 | O-HL-g-sq-v-7-a | International periodical Social Survey Program (ISSP) 2003 |
| 2 | O-HL-u-sq-v-4-a | World Value Surveys 1990, 1995, 2000 |
| 3 | O-SLL-u-sq-v-3-b | Eastern Europe New Demoracies Barometer 1991 |
| 5 | O-SLW-u-sq-v-4-b | International Candidate Countries Eurobarometer 2001, 2002, 2003 |
| 6 | O-SLL-u-sq-v-4-b | Eurobarometer since 2004 |
| Questionnaire | bulgarian1questionnaire | |
| Data file | bulgarian1.xls |
| Remarks | |