APA (7th ed.) Citation

Josef, D., Marek, G., & Zdenĕk, Š. Existence results for non-coercive problems. De Gruyter.

Chicago Style (17th ed.) Citation

Josef, Diblík, Galewski Marek, and Šmarda Zdenĕk. Existence Results for Non-coercive Problems. De Gruyter.

MLA (9th ed.) Citation

Josef, Diblík, et al. Existence Results for Non-coercive Problems. De Gruyter.