This week I received in my mail the printed version of the paper Confinement for Repulsive-Attractive Kernels, published in Discrete and Continuous Dynamical Systems-B 19, 1227–1248, 2014.
Moreover, the paper Stability Analysis of Flock and Mill rings for 2nd Order Models in Swarming was published in SIAM J. Appl. Math., 74(3), 794–818, 2104.