Small-density solutions in Keller–Segel systems involving rapidly decaying diffusivities
M. Ding, M. Winkler, Nonlinear Differential Equations and Applications NoDEA 28 (2021).

Does repulsion-type directional preference in chemotactic migration continue to regularize Keller–Segel systems when coupled to the Navier–Stokes equations?
M. Winkler, Nonlinear Differential Equations and Applications NoDEA 26 (2019).