, 1992, La "lineale Ausdehnungslehre" (1844) de Hermann Günther Grassmann, in L. Boi, D. Flament & J. Salanskis (éds), 1830–1930: a century of geometry, Dordrecht, Springer, pp. 205-221.
with Boi, L. , Salanskis, J.-M. (eds) , 1992a, 1830–1930: a century of geometry: epistemology, history and mathematics, Springer, Dordrecht.