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              Billari, F. C., Philipov, D., & Testa, M. (2009). Attitudes, norms and perceived behavioural control: Explaining fertility intentions in Bulgaria. European Journal of Population, 25(4): 439-465. http://www.jstor.org/stable/27772395
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              Billari, F. C., Philipov, D., & Testa, M. R. (2009). Attitudes, norms and perceived behavioural control: Explaining fertility intentions in Bulgaria. European Journal of Population, 25(4), 439-465.
                 (xsd:string)
              
            
              Billari, F. C., Philipov, D., & Testa, M. R. (2009). Attitudes, norms and perceived behavioural control: Explaining fertility intentions in Bulgaria. European Journal of Population, 25(4): 439-465. https://doi.org/10.1007/s10680-009-9187-9
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        | ?:name | 
            
              Billari, F. C., Philipov, D., Testa, M. R. (2009). Attitudes, norms and perceived behavioural control: Explaining fertility intentions in Bulgaria. European Journal of Population, 25(4), pp. 439-465.
                 (xsd:string)
              
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