@article{CG_1995___21_135_0,
     author = {Hersch, R.D. and Ostromoukhov, V.},
     title = {G\'en\'eration d{\textquoteright}images en demi-tons. {Introduction}},
     journal = {Cahiers GUTenberg},
     pages = {135--166},
     publisher = {Association GUTenberg},
     number = {21},
     year = {1995},
     language = {fr},
     url = {http://www.numdam.org/item/CG_1995___21_135_0/}
}