@article{10_4064_sm8311_4_2016,
     author = {Sun Kwang Kim and Han Ju Lee and Miguel Mart{\'\i}n},
     title = {On the {Bishop{\textendash}Phelps{\textendash}Bollob\'as} theorem for operators and numerical radius},
     journal = {Studia Mathematica},
     pages = {141--151},
     publisher = {mathdoc},
     volume = {233},
     number = {2},
     year = {2016},
     doi = {10.4064/sm8311-4-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm8311-4-2016/}
}