Ginzburg V L Quantum Field Theory And Quantum Statistics. Essays In Honour Of The Sixtieth Birthday Of E S Fradkin Vol. 2 (Eds I A Batalin, C J Isham, G A Vilkovisky) (Bristol: A. Hilger, 1987) p. 15
Batalin I A, Isham C J, Vilkovisky G A (Eds) Quantum Field Theory And Quantum Statistics. Essays In Honour Of The Sixtieth Birthday Of E S Fradkin (Bristol: A. Hilger, 1987)