Petzer, Tatjana. "Ageless, Vital, Immortal".
Foreign Countries of Old Age, edited by Dagmar Gramshammer-Hohl and Oana Hergenröther, Bielefeld: transcript-Verlag, 2021, pp. 253-270.
https://doi.org/10.14361/9783839445549-013
Petzer, Tatjana. "Ageless, Vital, Immortal" In
Foreign Countries of Old Age edited by Dagmar Gramshammer-Hohl and Oana Hergenröther, 253-270. Bielefeld: transcript-Verlag, 2021.
https://doi.org/10.14361/9783839445549-013