Korzhinsky, M.A.; S. I. Tkachenko; K. I. Shmulovich; Y. A. Taran; G. S. Steinberg (2004-05-05). "Discovery of a pure rhenium mineral at Kudriavy volcano". Nature369 (6475): 51–52. doi:10.1038/369051a0. Bibcode: 1994Natur.369...51K.
Korzhinsky, M.A.; S. I. Tkachenko; K. I. Shmulovich; Y. A. Taran; G. S. Steinberg (2004-05-05). "Discovery of a pure rhenium mineral at Kudriavy volcano". Nature369 (6475): 51–52. doi:10.1038/369051a0. Bibcode: 1994Natur.369...51K.