Опыт профессора Кнопа

From Author Wars - https://authorwars.com/books/opyt-professora-knopa-3290058.html

Overview:

Title: Опыт профессора Кнопа
Author: Павел Перов
Year: 1924
Type: Short Fiction

Variant Titles:

2013. Professor Knop's Experiment

Resources:

FantLab page for Опыт профессора Кнопа