S. Penczek et R. Szymanski, ON THE CONTRIBUTION OF COVALENT AND IONIC SPECIES TO THE CHAIN GROWTH, Macromolecular chemistry and physics, 196(3), 1995, pp. 957-961
The problem of computing of the covalent and ionic species contributio
n to the chain building in propagation is discussed, and it is shown t
hat under certain conditions the reversibility of propagation does not
influence the contribution of the given species.