@article{01716624, title = {On the extrema of integrable functions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {547-553}, doi = {10.1155/S0161171201005488}, zbl = {1049.90124}, language = {en}, url = {http://dml.mathdoc.fr/item/01716624} }
Dorosiewicz, Slawomir. On the extrema of integrable functions.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 547-553. doi : 10.1155/S0161171201005488. http://gdmltest.u-ga.fr/item/01716624/