@inbook{50199f28d1e54b908b92ab2368a3e85e,
title = "Classical physical entities with a quantum description",
author = "Bob Coecke and Bart D'Hooghe and Frank Valckenborgh",
year = "1997",
language = "English",
isbn = "9780792343745",
series = "Fundamental Theories of Physics",
publisher = "Springer, Springer Nature",
pages = "103--108",
editor = "Miguel Ferrero and {van der Merwe}, Alwyn",
booktitle = "New developments on fundamental problems in quantum physics",
address = "United States",
edition = "1",
}