The diophantine equation r2+r(x+y)=kxy.
Utz, W.R.
International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985), p. 179-181 / Harvested from The Electronic Library of Mathematics
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Publié le : 1985-01-01
DOI : https://doi.org/10.1155/S0161171285000175
EUDML-ID : urn:eudml:doc:45978 
@article{03920567,
     title = {The diophantine equation },
     journal = {International Journal of Mathematics and Mathematical Sciences},
     volume = {8},
     year = {1985},
     pages = {179-181},
     doi = {10.1155/S0161171285000175},
     zbl = {0576.10008},
     language = {en},
     url = {http://dml.mathdoc.fr/item/03920567}
}

Utz, W.R. The diophantine equation . International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985) pp. 179-181. doi : 10.1155/S0161171285000175. http://gdmltest.u-ga.fr/item/03920567/