==Works==In addition to a couple of books on the preservation of forests, he wrote:* "The Isolated Socialist State" (; Zürich, 1880)* "On the next tasks of Social Democracy" (; 1891)* "On state socialism" (; 1892)==Notes====References==;Attribution
также ==Социализм в одной стране, :en:Socialism in One Country* "The Isolated Socialist State" (; Zürich, 1880)* "On the next tasks of Social Democracy" (; 1891)* "On state socialism" (; 1892)* "Reden und Schriften zur Reformpolitik" (= "Internationale Bibliothek.