@article{01779138,
title = {On the concept of optimality interval.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {30},
year = {2002},
pages = {559-567},
doi = {10.1155/S0161171202011420},
zbl = {1022.11033},
language = {en},
url = {http://dml.mathdoc.fr/item/01779138}
}
Bibiloni, Lluís; Viader, Pelegrí; Paradís, Jaume. On the concept of optimality interval.. International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 559-567. doi : 10.1155/S0161171202011420. http://gdmltest.u-ga.fr/item/01779138/