B. Katz, Herbert Marcuse and the Art of Liberation: An Intellectual Biography
M. Schoolman, The Imaginary Witness: The Critical Theory of Herbert Marcuse
Peter Osborne

Tom Campbell, The Left and Rights: A Conceptual Analysis of the Idea of Socialist Rights
Bob Ecclesball

John Edward Toews, Hegelianism: The Path Toward Dialectical Humanism, 1805-1841
Gregory Claeys