Homogeneous non-degenerate $3$-$(alpha,delta)$-Sasaki manif… Twetch · November 29, 2020 Homogeneous non-degenerate $3$-$(alpha,delta)$-Sasaki manifolds and submersions over quaternionic K"ahler spaces. (arXiv:2011.13434v1 [math.DG]) http://arxiv.org/abs/2011.13434