1. Integral distances;Anning;Bull. Amer. Math. Soc.,1945
2. Maximal integral point sets over Z2;Antonov;Int. J. Comput. Math.,2010
3. Research Problems in Discrete Geometry;Brass,2005
4. Primes of the Form x2+ny2;Cox,1989
5. Unsolved Problems in Number Theory;Guy,2004