sentences:  In "La Nova Epoko" he published several essays on Esperanto literature (about Baghy, Bulthuis, Jung, Hohlov, Mikhalski, Devkin, Schulhof, and others).His critiques set out mainly from an original sociological viewpoint, but he simultaneously paid much attention to the use of language in the works.In the early 1930s he actively participated in the compilation and preparation of material on literature for the "Enciklopedio de Esperanto".