Apologies if this has been 'done to death' before, but this Rossi replication seemed to me to be worth airing again.
Experimental Measurement of Excess Thermal Energy Released from a Cell Loaded with a Mixture of Nickel Powder and Lithium Aluminum Hydride
I. N. Stepanov, Yu. I. Malahov, Chi Nguyen Quoc.
Translated into English by Bob Higgins of Accuiti Science & Engineering
Abstract - This paper describes the experimental setup, and
methodology for assessing the energy in a small volume heat cell,
that was loaded with a mixture of nickel powder and lithium
aluminum hydride. This paper confirms the results obtained
previously by Andrea Rossi and AG Parkhomov - that under
certain conditions the cell makes excess energy; I.E. in the
amount of heat released exceeding the input.
[edit by Rends fixed the link]