In 1926-1931, he was correspondent in Vienna of the Marx-Engels Institute in Moscow, searching for archival materials.

However, the work was later retrieved and published for the first time in 1932 by David Riazanov through the Marx-Engels Institute in Moscow.

In 1927 Beer was invited to Moscow to work at the Marx-Engels Institute by that facility's director, David Ryazanov.

In 1921 Riazanov established the Marx-Engels Institute, which became one of the main institutions of Soviet philosophy and history.

New York: Marx-Engels Institute, 1922.

Otherwise, David Riazanov was named director of the Marx-Engels Institute, which he had founded, in 1920.

There he worked for the Comintern and the Marx-Engels Institute.

The Marx-Engels Institute was headed by David Riazanov, against whom Joseph Stalin nursed a grudge.

From 1927 to 1930 he worked at the Marx-Engels Institute in Moscow, and from 1930 to 1933 in Berlin.

Following the Russian Revolution of 1917, Nicolaevsky became the head of the Marx-Engels Institute in Moscow.