@article{10_4064_aa_46_3_257_269,
     author = {Nikos Tzanakis},
     title = {On the diophantine equation $x^2 {\textemdash} Dy^4 = k$},
     journal = {Acta Arithmetica},
     pages = {257--269},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {1985},
     doi = {10.4064/aa-46-3-257-269},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-46-3-257-269/}
}