29th Congress of the European-College-of-Neuropsychopharmacology (ECNP), Vienna, Avusturya, 17 - 20 Eylül 2016, cilt.26, (Özet Bildiri)
We use Vinogradov's method to prove equidistribution of a spin symbol governing the $16$-rank of class groups of quadratic number fields $\mathbb{Q}(\sqrt{-2p})$, where $p \equiv 1 \bmod 4$ is a prime.