R. BERKE, und D. SANGER. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=119233292&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
T. with STEVEN ERLANGER. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=118091979&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
C. with STEVEN ERLANGE. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=117880463&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
N. MacFARQUHAR. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=118964656&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
M. with JODI WILGOREN. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=118607346&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
E. SCHMITT, und T. SHANKER. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=117880446&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
W. BROAD, und D. JOHNSTON. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=118091975&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)
D. Kirkpatrick. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=117808701&Fmt=7&clientId=9320&RQT=309&VName=PQD, (Mai 2002)