@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/