1. Barrucand, P., Cohn, H.: Note on primes of type $$x^2+ 32y^2$$, class number, and residuacity. J. Reine Angew. Math. 238, 67–70 (1969)
2. Berndt, B.C., Evans, R.J., Williams, K.S.: Gauss and Jacobi Sums. Wiley, New York (1998)
3. Browkin, J., Schinzel, A.: On Sylow $$2$$-subgroups of $$K_2\cal{O}_F$$ for quadratic number fields $$F$$. J. Reine Angew. Math. 331, 104–113 (1982)
4. Conner, P.E., Hurrelbrink, J.: On elementary abelian $$2$$-Sylow $$K_2$$ of rings of integers of certain quadratic number fields. Acta Arith. 73, 59–65 (1995)
5. Graduate Texts in Mathematics;K Ireland,1972