@article{CG_1989___1_39_0,
     author = {Siebenmann, Laurent},
     title = {\'Evolution en amont de {TeX~:} le foisonnement des pr\'eprocesseurs pour la math\'ematique},
     journal = {Cahiers GUTenberg},
     pages = {39--44},
     publisher = {Association GUTenberg},
     number = {1},
     year = {1989},
     language = {fr},
     url = {http://www.numdam.org/item/CG_1989___1_39_0/}
}