1. J. C. Warf, K. H. Schaltegger, Method of Coating Steel with Nickel-Boron, 1955, US patent 2726170.
2. V. Vitry, F. Delaunois, in Compr. Guid. Nanocoatings Technol. Vol. 1 Depos. Mech. (Ed.: M. Aliofkhazraei), Nova Science Publishers, 2015, pp. 145–173.
3. Electroless nickel, alloy, composite and nano coatings – A critical review