@article{JCA_2013_20_3_JCA_2013_20_3_a10,
     author = {K. Musial},
     title = {Approximation of {Pettis} {Integrable} {Multifunctions} with {Values} in {Arbitrary} {Banach} {Spaces}},
     journal = {Journal of convex analysis},
     pages = {833--87},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JCA_2013_20_3_JCA_2013_20_3_a10/}
}