Published in Physical Review E 75, issue 5, 050102(R).
Cited passages: Talkner, Lutz and Hänggi, p. 2, equations (8)–(10): initial energy outcome, conditional transition probability and two-measurement work distribution; Talkner, Lutz and Hänggi, p. 2, paragraph before equation (7): sudden switch gives the identity time-evolution operator.