(a) conventional low accel stall - refer to any aerodynamics and/or authoritative flight mechanics text. Your Institution's library should have a bunch of such texts and, I would guess, you have bought a couple for your own library as well ?
(b) accelerated stall (g-stall) - as for (a)
(c) deep stall - as for (a)
(d) high pitch rate stall (accelerated stall) - best paper I have read was in the Aero Soc Journal some years ago. I was looking for this in respect of another thread some time ago but haven't yet tracked it down in the filing cabinets (eventually, I'll get all those useful articles scanned). This will be the one you refer to as involving a "separation bubble", I suspect.