@inbook{7d3310ee500b461cb7da80d136513d17,
title = "Quantum phase transitions in spin systems",
author = "J Richter and SE Kr{\"u}ger and DJJ Farnell and RF Bishop",
year = "2001",
language = "English",
isbn = "981-02-4730-3",
series = "Series on Advances in Quantum Many-body Theory",
publisher = "World Scientific Publishing Co. Pte. Ltd",
pages = "239--246",
editor = "RF Bishop and KA Gernoth and NR Walet",
booktitle = "150 Years of Quantum Many-Body Theory: A Festschrift in Honour of the 65th Birthdays of John W. Clark, Alpo J. Kallio, Manfred L. Ristig and Sergio Rosati",
address = "Singapore",
}