Surfactant-loaded capsules as Marangoni microswimmers at the air–water interface: Symmetry breaking and spontaneous propulsion by surfactant diffusion and advectionHendrik Ender, Ann-Kathrin Froin, Heinz Rehage and Jan KierfeldEur. Phys. J. E, 44 2 (2021) 21DOI: https://doi.org/10.1140/epje/s10189-021-00035-8