@article{10_4064_aa162_4_5,
     author = {H. G. Grundman and L. L. Hall-Seelig},
     title = {Solutions to $xyz = 1$ and $x+y+z = k$ in algebraic integers of small degree, {I}},
     journal = {Acta Arithmetica},
     pages = {381--392},
     publisher = {mathdoc},
     volume = {162},
     number = {4},
     year = {2014},
     doi = {10.4064/aa162-4-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa162-4-5/}
}