Looking for resources about tunneling effect on two delta functional barriers

[Andre_86]

Hello. I have 2 questions. First, I've read theory of tunneling effect but I need theory of two and more delta functional barriers. How do you think where can I read more about it? I need it for superconductors. And second, where can I find how to add magnetic field to theory of it? How it influence on wave function in zones between potential barriers.

 

[anuttarasammyak]

Wikipedia article https://en.wikipedia.org/wiki/Delta_potential#Double_delta_potential deals with double delta well potential.