S. Hetzl, A. Leitsch, G. Reis, D. Weller:
"Algorithmic introduction of quantified cuts";
Theoretical Computer Science, 549 (2014), 1 - 16.
http://dx.doi.org/10.1016/j.tcs.2014.05.018Electronic version of the publication:
http://dx.doi.org/10.1016/j.tcs.2014.05.018