Note on a paper of E. M. E. Zayed and S. F. M. Ibraham.
Eberhard, W. ; Freiling, G. ; Schneider, A.
International Journal of Mathematics and Mathematical Sciences, Tome 15 (1992), p. 809-811 / Harvested from The Electronic Library of Mathematics
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Publié le : 1992-01-01
DOI : https://doi.org/10.1155/S0161171292001054
EUDML-ID : urn:eudml:doc:46828 
@article{00147590,
     title = {Note on a paper of E. M. E. Zayed and S. F. M. Ibraham.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     volume = {15},
     year = {1992},
     pages = {809-811},
     doi = {10.1155/S0161171292001054},
     zbl = {0768.34055},
     language = {en},
     url = {http://dml.mathdoc.fr/item/00147590}
}

Eberhard, W.; Freiling, G.; Schneider, A. Note on a paper of E. M. E. Zayed and S. F. M. Ibraham.. International Journal of Mathematics and Mathematical Sciences, Tome 15 (1992) pp. 809-811. doi : 10.1155/S0161171292001054. http://gdmltest.u-ga.fr/item/00147590/