MKMartin KolkFollowUsage metrics Co-workers & collaboratorsGAGunnar AnderssonProfessor of DemographyGunnar AnderssonKBKieron BarclayKieron BarclaySDSven DrefahlSven DrefahlJSJan SaarelaJan SaarelaMBMaria BrandénMaria BrandénEMEleonora MussinoResearch Scientist - Stockholm UniversityEleonora Mussino