Where to read about the Elbing-class torpedo boats

What sources cover the Elbing-class torpedo boats beyond Wikipedia?

A German destroyer and small-ship history and M. J. Whitley's Destroyers of World War Two provide useful starting points, although both cover the class briefly.

Information on the Elbing class is thin in standard references. One book on German destroyers and smaller warships has a useful chapter, though the quality of its chapters varies sharply. M. J. Whitley's Destroyers of World War Two gives the class only brief coverage, and the later on-camera check finds a few relevant pages across the related torpedo-boat designs. These references are useful starting points, but the sparse coverage explains why online summaries often repeat the same limited material.