Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016, 374 (2081), pp.20160246. ⟨10.1098/rsta.2016.0246⟩ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2016, 374 (2081), pp.20160246. ⟨10.1098/rsta.2016.0246⟩