Simiolus is available via JSTOR.
The moving wall is fixed at three volumes, so currently the years 1966 to 2018 (vol. 40) are online.
Backsets volumes 1–40 are available through:
Schmidt Periodicals GmbH
Dettendorf Römerring 12
D-83075 Bad Feilnbach, Germany
Tel: +49 8064 221
Fax: +49 8064 557
The three most recent volumes are available through email@example.com