@article{10_21136_MB_2019_0104_18,
     author = {Gardiner, Stephen J. and Sj\"odin, Tomas},
     title = {On a conjecture of {Kr\'al} concerning the subharmonic extension of continuously differentiable functions},
     journal = {Mathematica Bohemica},
     pages = {71--73},
     publisher = {mathdoc},
     volume = {145},
     number = {1},
     year = {2020},
     doi = {10.21136/MB.2019.0104-18},
     mrnumber = {4088694},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2019.0104-18/}
}