8. [4] E. Nelson. "Derivation of the Scrodinger equation from Newtonian mechanics". Phy. Rev.. 150, 1079 (1969): E. Nelson. "Quantum Fluctuations". Princeton Series in Physics. Princeton. [5] L. Smolin. Could quantum mechanics be an approximation to another theory?, quant-ph/0609109. [6] Henrique Comes. Sean Gr