@article{SEMR_2019_16_a83,
     author = {T. V. Sazhenkova and S. A. Sazhenkov},
     title = {Kaplan's penalty operator in approximation of a diffusion-absorption problem with a one-sided constraint},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {236--248},
     publisher = {mathdoc},
     volume = {16},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2019_16_a83/}
}