Abrash, Henry I.; Gulberg, C. M. (1986). «Studies Concerning Affinity». Journal of Chemical Education. 63: 1044 – 1047. doi:10.1021/ed063p1044- English translation of Waage and Guldberg's 1864 paper (above)
Bowden, S. T. (1954). «A Corrected Guldberg Rule». Nature. 174. 613 páginas. doi:10.1038/174613b0