@article{EUG_1992_32_a9,
     author = {Owe Axelsson and  Ivar Gustafsson},
     title = {An efficient finite element method for nonlinear diffusion problems},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {45--61},
     year = {1992},
     volume = {32},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1992_32_a9/}
}