APA (7th ed.) Citation

(1989). Forum mathematicum. de Gruyter. https://doi.org/10.1515/form

Chicago Style (17th ed.) Citation

Forum Mathematicum. Berlin [u.a.]: de Gruyter, 1989. https://doi.org/10.1515/form.

MLA (9th ed.) Citation

Forum Mathematicum. de Gruyter, 1989. https://doi.org/10.1515/form.