In the well of the soft top, on either side, are these brackets. They are large, they are spring loaded, and there is nothing anything like them in the same location. So, it does not matter if you call them "L-Shaped" (which they sort of are) or "Spring Loaded Levers", (also which they are) or anything else--once you get in there it is pretty obvious. While GTMSJ was able to do it solo, it is a lot easier with a helper and long screwdrivers as push-aids.
Nearly everyone has had this "soft top wedgie" before (except the coupe owners w/o the soft top...)
I should also note that (as I did somewhat sheepishly years ago) if you open and close the softtop following the directions in the owner's manual, this will not happen!
Speaking of owner's manuals, when I visited with Paul Bracq in March he had a brand new Citroen C6 on loan to him for my visit. This car had a peculiar electric parking brake. The release of said brake was confounding M. Bracq on Monday and Tuesday, to the point of frustration. On Wednesday when he arrived at my hotel to take me to the airport, he released the brake in one easy step. I asked him what, finally, was the secret to releasing the brake? He said, "Last night I read the owner's manual..."