@misc{grigorev_concerning_the_1997, 
author={Grigorev, S. V.,Klimko, S. A.,Maleev, S. V.,Okorokov, A. I.,Runov, V. V.,Kampmann, R.,Eckerlebe, H.},
title={Concerning the two magnetic correlation lengths above Tc in an Invar iron-nickel alloy},
year={1997},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Grigorev, S.; Klimko, S.; Maleev, S.; Okorokov, A.; Runov, V.; Kampmann, R.; Eckerlebe, H.: Concerning the two magnetic correlation lengths above Tc in an Invar iron-nickel alloy. JETP Letters. 1997. vol. 66, no. 1, 56-61.}}