Gregory Zhang, Xiaoge (1996). Corrosion and Electrochemistry of Zinc. Springer Verlag Gmbh. pp. 16, 17. ISBN 978-1-4757-9877-7. Retrieved 12 December 2014. 978-1-4757-9877-7
"New Protective Zinc Coating Introduced". The Iron Age. Vol. 137, no. 22. May 28, 1936. p. 94. Retrieved 8 Mar 2023 – via Internet Archive. https://archive.org/details/sim_chiltons-iron-age_1936-05-28_137_22
US patent 2035380, Ernest John Wilhelm, "Method of coating zinc or cadmium base metals", published 1936-03-24, issued 1936-03-24, assigned to The New Jersey Zinc Company
https://worldwide.espacenet.com/textdoc?DB=EPODOC&IDX=US2035380