APA Style

Zagst, K, G, ?, M, S, R. (2015). Springer Proceedings in Mathematics & Statistics Volume 99 . : Springer International Publishing.

MLA Style

Zagst, Kathrin, Glau, ???, Matthias, Scherer, Rudi. "Springer Proceedings in Mathematics & Statistics Volume 99". : Springer International Publishing, 2015. Text.