Das Lächeln der Sphinx

From Author Wars - https://authorwars.com/books/das-lacheln-der-sphinx-1611329.html

Overview:

Title: Das Lächeln der Sphinx
Author: Ingeborg Bachmann
Year: 1949
Type: Short Fiction

Variant Titles:

1991. The Smile of the Sphinx

Resources:

German Wikipedia article on Das Lächeln der Sphinx