@article{02163686,
title = {Critical values lie on a line.},
journal = {Abstract and Applied Analysis},
volume = {2004},
year = {2004},
pages = {757-776},
doi = {10.1155/S1085337504311012},
zbl = {1093.58013},
language = {en},
url = {http://dml.mathdoc.fr/item/02163686}
}
Ainouline, Azat. Critical values lie on a line.. Abstract and Applied Analysis, Tome 2004 (2004) pp. 757-776. doi : 10.1155/S1085337504311012. http://gdmltest.u-ga.fr/item/02163686/