Erich Joos, H. Dieter Zeh, The emergence of classical properties through interaction with the environment, Z. Physik B – Condensed Matter 59 (1985) 223–243 [doi:10.1007/BF01725541]
Review:
Claus Kiefer, Erich Joos, Decoherence: Concepts and Examples, in: Quantum Future From Volta and Como to the Present and Beyond, Lecture Notes in Physics 517* (1999) [arXiv:quant-ph/9803052, doi:10.1007/BFb0105342]