TLTrude LappegardFollowUsage metrics Co-workers & collaboratorsPFPeter FallesenPeter FallesenGAGunnar AnderssonProfessor of DemographyGunnar AnderssonMKMartin KolkMartin KolkGNGerda NeyerGerda NeyerAKAri Klængur JónssonAri Klængur JónssonCCChiara ComolliChiara Comolli