Hard Science Fiction
Slusser, George Edgar, and Eric S. Rabkin, eds. Hard Science Fiction. Carbondale and Edwardsville: Southern Illinois UP, 1986.
Includes essays "on the city, on computers, on information theory in Lem" and a "virtually monograph-length study by [Robert M.] Philmus on Lem's 'cybernetic paradigms'" (Frederic Jameson, "Shifting Contexts of Science-Fiction Theory," rev. of three works, in SFS #42, 14.2 [July 1987]: 245).