@article{article42b987c1,
title   = {Acquisition and extinction of jumping , two-way shuttle-box and bar press avoidance responses in matinourishet rats: effects of schock intensity},
author = {Almeida, S S and Menescal-de-Oliveira, Leda},
year = {1994},
journal   = {Brazilian Journal of Medical and Biological Research}
}