Fingering for german system oboe

Hello,

I'm having some trouble while learning to play a german system oboe, as the fingering isn't the same has in the boehm oboes. I can do the heavy lifting and search for the correct fingerings with a tuner and a lot of patience, but why re-invent the wheel?

Hope that someone here has a fingering chart for these instruments, I couldn't find online. It has the thumb plateau key, L2/3 ring and R1/3 ring keys. I'm really new to the oboe, so I don't know much.