Johanna Quaas (95) turnt Corona-Generation gesund. Kronenzeitung, 23.11.2020. Artikkelin verkkoversio.
washingtonpost.com
Payne, Marissa: ‘My face is old but my heart is young’: World’s oldest gymnast still has moves at 91. The Washington Post, 20.6.2017. Artikkelin verkkoversio.