TY  - JOUR 
T1  - Unambiguous assessments of reaction paths for selected pericyclic reactions
JO  - Química Nova
A1  - Langler, Richard Francis
SN  - 0100-4042
UL  - 10.1590/S0100-40422000000500021
VL  - 23 
Y1  - 2000
PB  - Brasil 
ER  -