no. 3
Numerical methods with interface estimates for the porous medium equation
ESAIM: Modélisation mathématique et analyse numérique, Tome 21 (1987) no. 3, pp. 465-485. 
@article{M2AN_1987__21_3_465_0,
     author = {Hoff, David and Lucier, Bradley J.},
     title = {Numerical methods with interface estimates for the porous medium equation},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {465--485},
     publisher = {AFCET - Gauthier-Villars},
     address = {Paris},
     volume = {21},
     number = {3},
     year = {1987},
     mrnumber = {908241},
     zbl = {0633.76095},
     language = {en},
     url = {http://archive.numdam.org/item/M2AN_1987__21_3_465_0/}
}
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Hoff, David; Lucier, Bradley J. Numerical methods with interface estimates for the porous medium equation. ESAIM: Modélisation mathématique et analyse numérique, Tome 21 (1987) no. 3, pp. 465-485. http://archive.numdam.org/item/M2AN_1987__21_3_465_0/

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