Haspelmath, Martin. 1993. The diachronic externalization of inflection. Linguistics 31.2. 279-309.
@article{jacquesestimative-haspelmath93extern, author = {Haspelmath, Martin}, journal = {Linguistics}, pages = {279-309}, title = {The diachronic externalization of inflection}, volume = {31.2}, year = {1993} }