参考文献:
Niewohner, Ulrich Niewohner, Maria Bauser, Marcus Erguden, Jens-Kerim Flubacher, Dietmar Naab, Paul Repp, Thorsten-Oliver Stoltefuss, Jurgen Burkhardt, Nils Sewing, Andrea Schauer, Michael Schlemmer, Karl-Heinz Weber, Olaf Boyer, Stephen J. Miglarese, Mark Fan, Jianmei Phillips, Barton Raudenbush, Brian C. Wang, Yamin Patent: US/676 A1, Location in patent: Page 15 US 676 A1