London School of Economics and Political Science. "The Suffrage Interviews". London School of Economics and Political Science. Retrieved 17 November 2023.
oxforddnb.com
Sybil Oldfield, 'Eckenstein, Lina Dorina Johanna (1857–1931)', Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, September 2014 Profile, oxforddnb.com; retrieved 1 October 2015.