If it is daylight film (T = tageslicht) I remember doing some back about 55 years ago. And IIRC the active developing agent was plain ol' PPD. There was no yellow mask and I actually plodded thru the print process and got some shots but with no PC, scanner or PS it was all too hard, and gave it up. The colors ware 'delicate' to say the least.
BJP were the prime source of formulae in those days, for me.
I could dig further if you're serious.