@article{05198130,
title = {Different structures in },
journal = {Novi Sad Journal of Mathematics},
volume = {35},
year = {2005},
pages = {113-121},
zbl = {1119.53011},
language = {en},
url = {http://dml.mathdoc.fr/item/05198130}
}
Nikić, Jovanka. Different structures in . Novi Sad Journal of Mathematics, Tome 35 (2005) pp. 113-121. http://gdmltest.u-ga.fr/item/05198130/