@article{02239253, title = {Minimum segments in sequent derivations.}, journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie}, volume = {73(87)}, year = {2003}, pages = {5-17}, doi = {10.2298/PIM0374005B}, zbl = {1076.03037}, language = {en}, url = {http://dml.mathdoc.fr/item/02239253} }
Borisavljević, Mirjana. Minimum segments in sequent derivations.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 73(87) (2003) pp. 5-17. doi : 10.2298/PIM0374005B. http://gdmltest.u-ga.fr/item/02239253/