Marxist Writers: Rudolf Hilferding
Böhm-Bawerk's Criticism of Marx, 1904
Parliamentarianism and the General Strike (from The Social Democrat November 1905. This is not by Hilferding. This text refers to an article, Rudolf Hilferding had published in Die Neue Zeit, September 16, 1905. This article Parliamentarismus und Massenstreik is available on the here. Die Neue Zeit articles are available here).
Finance Capital: A Study of the Latest Phase of Capitalist Development 1910
Between Decisions 1933
State Capitalism or Totalitarian State Economy 1940