%0 Journal Article %A Chen, Yen Hung %T Approximability results for the $p$-centdian and the converse centdian problems %J Discrete mathematics & theoretical computer science %D 2022 %V 24 %N 2 %U http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.6877/ %R 10.46298/dmtcs.6877 %G en %F DMTCS_2022_24_2_a7