M. Dąbrowski, T. R. F. Peixoto, M. Pazgan, A. Winkelmann, M. Cinal, T. Nakagawa, Y. Takagi, T. Yokoyama, F. Bisio, U. Bauer, F. Yildiz, M. Przybylski, and J. Kirschner
PHYSICAL REVIEW LETTERS 113, 067203 (2014)
tekst: http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.067203