@article{10_4064_ba53_3_4,
     author = {S. Rolewicz},
     title = {On  ${\mit\Phi}^{\gamma(\cdot,\cdot)}$-subdifferentiable
and $[{\mit\Phi}+\gamma]$-subdifferentiable {Functions}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {273--279},
     publisher = {mathdoc},
     volume = {53},
     number = {3},
     year = {2005},
     doi = {10.4064/ba53-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba53-3-4/}
}