Santa Cruz, CA δ Waltham, MA δ Gørlev, Denmark δ Berlin, Germany δ Königstein, Germany δ Baroda, India δ Vadodara, India δ Barnaul, Siberia δ Schwanenstadt, Austria δ Bonn, Germany δ Goettingen, Germany δ Hanau, Germany δ Luebeck, Germany δ Munich, Germany δ Moscow, Russia δ Magdeburg, Germany δ Lexington, KY δ Frankfurt, Germany δ Salem-Tufingen, Germany δ Cedar Rapids, IA δ Wyssachen, Switzerland δ Zurichberg, Switzerland δ , Germany δ Spring Mills, PA δ Havertown, PA δ New Orleans, LA δ Vienna, Austria δ South Allen, PA δ Sheffield, MA δ Bad Toelz, Germany δ Erfurt, Germany δ Shenzhen, China δ Chungli City, Taiwan