TY  - JOUR 
T1  - Some results about the connectivity of trees
JO  - Pesquisa Operacional
A1  - Markenzon, Lilian
A1  - Abreu, Nair Maria Maia de
A1  - Lee, Luciana
SN  - 0101-7438
UL  - 10.1590/S0101-74382013000100008
VL  - 33 
Y1  - 2013
PB  - Brasil 
ER  -