@article{10_14708_cm_v61i1_2_7128,
     author = {Sung Guen Kim},
     title = {Norm attaining bilinear forms on the plane with the octagonal norm},
     journal = {Commentationes Mathematicae},
     pages = { 15--24},
     publisher = {mathdoc},
     volume = {61},
     number = {1-2},
     year = {2023},
     doi = {10.14708/cm.v61i1-2.7128},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v61i1-2.7128/}
}