1. Aida (On-line catalog). NS2-series servo press, http://us.aida-global.com/products/ns2.jsp
2. Delta Tau Data Systems Inc. (2006a). Turbo PMAC user manual, version Nov 2006.
3. Delta Tau Data Systems Inc. (2006b). Cross coupled drive of dual-motor gantry system – PMAC application note, downloadable at http://www.deltatau.com/common/support/technotes/Gantry%20with%20Cross%20Coupling.pdf
4. Manufacturing Engineering and Technology;Kalpakjian,2006
5. Komatsu (On-line catalog). H2F hybrid AC servo presses, http://www.komatsusanki.co.jp/en/tanatsu/eH2F.html