Carlin, Wendy, Fries, Steven, Schaffer, Mark and Seabright, Paul (2000) Barter and Non-Monetary Transactions in Transition Economies: Evidence from a Cross-Country Survey. In: Vanishing Rouble: Barter Networks and Non-Monetary Transactions in Post-Soviet Societies Cambridge University Press. Chapter 4. pp. 93-113. ISBN 978-0521795425