@article{10_4064_sm209_1_6,
     author = {Pavel Ludv{\'\i}k and Ji\v{r}{\'\i} Spurn\'y},
     title = {Descriptive properties of elements
 of biduals of {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {71--99},
     publisher = {mathdoc},
     volume = {209},
     number = {1},
     year = {2012},
     doi = {10.4064/sm209-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm209-1-6/}
}