[886] Simplices of maximal volume in hyperbolic$n$-space

[887] A$p$-extremal length and$p$-capacity equality

[888] On discrete Möbius groups in all dimensions: A generalization of Jørgensen's inequality

[889] Über die Invarianten von linearen Gruppen

[890] Embedding-obstruction for singular algebraic varieties in$P$^{$N$}