*I. Kelly R. Martens: "Lunar phase and birthrate: An update", Psychological Reports, 75, 507-511
*I. Kelly R. Martens: "Lunar phase and birthrate: An update", Psychological Reports, 75, 507-511
*Kelly, et al 1996
*Kelly, et al 1996
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*G . Ghiandoni, Does lunar position influence the time of delivery? A statistical analysis. European Journal of Obstetrics & Gynecology and Reproductive Biology , Volume 77 , 1, Seiten 47 - 50