6. Acknowledgements (謝辞)

Peter Mauritius, Amanda Anganes, Mark Wubben, Hannes Tschofenig, Michiel de Jong, Doug Foiles, Paul Madsen, George Fletcher, Sebastian Ebling, Christian Stuebner, Brian Campbell, Igor Faynberg, Lukas Rosenstock, Justin Richer の貴重なフィードバックに感謝します。