This is one of the most comprehensive papers about Ni-H cold fusion: Mengoli, G., et al., *Anomalous heat effects correlated with electrochemical hydriding of nickel*. Nuovo Cimento Soc. Ital. Fis. A, 1998. *20 D*: p. 331
http://lenr-canr.org/acrobat/MengoliGanomaloush.pdf I have some doubts about this work, but I will refrain from discussing it for now, and let the readers decide. - Jed