This document is unfortunately not available for download at the moment.
Steve Russ , Jörg Liesen (2011) From Past to Future: Graßmann's Work in Context: Graßmann Bicentennial Conference, September 2009, Dordrecht, Springer.
Discovering Robert Grassmann (1815–1901)
Ivor Grattan-Guinness
pp. 19-35
Not implemented yet !