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, and let the readers decide.