@article{10_4064_aa98_1_1,
     author = {Ryuta Hashimoto},
     title = {Note on a theorem of {Rockett} and {Szusz} on
a diophantine equation $x^2-dy^2=N$},
     journal = {Acta Arithmetica},
     pages = {1--13},
     publisher = {mathdoc},
     volume = {98},
     number = {1},
     year = {2001},
     doi = {10.4064/aa98-1-1},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa98-1-1/}
}