@article{SzalayZ13,
  title = {S-Diophantine Quadruples with Two Primes Congruent to 3 Modulo 4},
  author = {László Szalay and Volker Ziegler},
  year = {2013},
  url = {http://math.colgate.edu/~integers/n80/n80.Abstract.html},
  researchr = {https://researchr.org/publication/SzalayZ13},
  cites = {0},
  citedby = {0},
  journal = {Integers},
  volume = {13},
}