Did Lewis Carroll own a copy of George Boole's Laws of thought? An argument from the sale cataloguesMoktefi, AmiroucheBSHM bulletin : journal of the British Society for the History of Mathematics2018 / p. 21-28 : illhttps://doi.org/10.1080/17498430.2017.1384200
"Raudse mehe" kogu tutvustati Vikerraadios : [professor Priit Kulu tutvustas oma kollektsioone]Mente et Manu2011 / lk. 2 : fothttps://www.ester.ee/record=b1242496*est