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Ajdacic-Gross, Vladeta; et al. Death has a preference for birthdays—an analysis of death time series. Annals of Epidemiology. 2012, 22 (8): 603–606. PMID 22658822. doi:10.1016/j.annepidem.2012.04.016.
Doblhammer, Gabrielle. Longevity and month of birth: Evidence from Austria and Denmark. Demographic Research. 1999, 1 (3): [22] p. PMID 12178151. doi:10.4054/DemRes.1999.1.3.
Bovet, J; Spagnoli, J; Sudan, C. [Mortality and birthdays]. Sozial- und Präventivmedizin. 1997, 42 (3): 151–161. PMID 9334087. doi:10.1007/bf01300566(法语).
Ajdacic-Gross, Vladeta; et al. Death has a preference for birthdays—an analysis of death time series. Annals of Epidemiology. 2012, 22 (8): 603–606. PMID 22658822. doi:10.1016/j.annepidem.2012.04.016.
Doblhammer, Gabrielle. Longevity and month of birth: Evidence from Austria and Denmark. Demographic Research. 1999, 1 (3): [22] p. PMID 12178151. doi:10.4054/DemRes.1999.1.3.