Lang's Crane

I realized this past weekend just how difficult a seemingly innocent looking crane can be. Robert Lang's crane in his Origami in Action has it all: 2 open unsinks, a re-sink into a different pocket, and 2 open wraps. The re-sink is particularly nasty. I wonder if this crane is the reason that Anna Kastlunger and Gerwin Sturm dedicated their "innovative folding method for the traditional crane" to Robert Lang at http://www.origamiaustria.at/articles/kranich.pdf ...