@article{01354879,
title = {A separation theorem for },
journal = {Mathematica Pannonica},
volume = {9},
year = {1998},
pages = {103-109},
zbl = {0929.26008},
language = {en},
url = {http://dml.mathdoc.fr/item/01354879}
}
Matkowski, Janusz; Zgraja, Tomasz. A separation theorem for . Mathematica Pannonica, Tome 9 (1998) pp. 103-109. http://gdmltest.u-ga.fr/item/01354879/