^ 1.01.1Bryer, Lanning G. Intellectual property assets in mergers and acquisitions. John Wiley and Sons: 12.2–12.3. 2002. ISBN 978-0-471-41437-7.缺少或|url=为空 (帮助)
^Krishna, K.L.; Uma Kapila. Readings in Indian Agriculture and Industry. Academic Foundation. 2009: 599. ISBN 978-81-7188-734-7.引文使用过时参数coauthors (帮助)