Judith Orloff (2004). “Positive Energy: 10 Extraordinary Prescriptions for Transforming Fatigue, Stress, and Fear into Vibrance, Strength, and Love”, p.26, Harmony
Josef Škvorecký (1986). “The engineer of human souls: an entertainment on the old themes of life, women, fate, dreams, the working class, secret agents, love and death”, Picador