Some properties of Pythagorean modulus.
Wang, Fenghui
Journal of Inequalities and Applications [electronic only], Tome 2007 (2007), / Harvested from The Electronic Library of Mathematics
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Publié le : 2007-01-01
DOI : https://doi.org/10.1155/2007/71012
EUDML-ID : urn:eudml:doc:129739 
@article{05236966,
     title = {Some properties of Pythagorean modulus.},
     journal = {Journal of Inequalities and Applications [electronic only]},
     volume = {2007},
     year = {2007},
     doi = {10.1155/2007/71012},
     zbl = {1158.46010},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05236966}
}

Wang, Fenghui. Some properties of Pythagorean modulus.. Journal of Inequalities and Applications [electronic only], Tome 2007 (2007) . doi : 10.1155/2007/71012. http://gdmltest.u-ga.fr/item/05236966/