Recercat. Dipósit de la Recerca de Catalunya instname Science China-Physics, Mechanics & Astronomy Science China: Physics, Mechanics and Astronomy, 62(2):29503. Science in China Press UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Science China Physics, Mechanics & Astronomy Science china-Physics mechanics & astronomy, 62(2):029503. Science Press arXiv