@article{article6a1f8144,
title   = {H'alfa' spectropolarimetry of Ry Tauri and PX Vulpeculae (Research Note)},
author = {Pereyra, A and Magalhães, Antonio Mário and Araújo, F.X. de},
year = {2009},
journal   = {Astronomy & Astrophysics}
}