title: Reply to the note by Frejka and Sardon on our paper 'Patterns of low and lowest-low fertility in Europe' and an erratum.
authors.affiliation: francesco.billari@uni-bocconi.it
authors.forename: Francesco C
authors.initials: FC
authors.lastname: Billari
authors.forename: Hans-Peter
authors.initials: HP
authors.lastname: Kohler
mesh_terms: D000328:Adult; D015331:Cohort Studies; D005060:Europe; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008875:Middle Aged