N=4, d=1 tensor multiplet and hyper-Kahler sigma-models
  We demonstrate how hyper-Kahler manifolds arise from a sigma-model action for N=4, d=1 tensor supermultiplet after dualization of the auxiliary bosonic component into a physical bosonic one. 
S. Krivonos, A. Shcherbakov (BLTP, JINR, Dubna, Russia)