@inbook{10.1525/j.ctt1pph8q.4, ISBN = {9780520079861}, URL = {http://www.jstor.org/stable/10.1525/j.ctt1pph8q.4}, bookauthor = {LEO SARTORI}, booktitle = {Understanding Relativity: A Simplified Approach to Einstein's Theories}, pages = {xiii--xiv}, publisher = {University of California Press}, title = {Acknowledgments}, year = {1996} }