I do not think a complete treatment exists. There is a paper by Marcella which gives some arguments. http://arxiv.org/pdf/quant-ph/0703126

However it is not a really solid argument (see criticism at http://arxiv.org/pdf/1009.2408.pdf)

I do not think a complete treatment exists. There is a paper by Marcella which gives some arguments. https://arxiv.org/abs/quant-ph/0703126

However it is not a really solid argument (see criticism at https://arxiv.org/abs/1009.2408)