Sella, A.F. 2011. At the limits of permission: functions performed by the verbs poder (can) and dever (must) in the FUNDEB’s guidelines Manual. Acta Scientiarum. Language and Culture. 33, 2 (Aug. 2011), 211-215. DOI:https://doi.org/10.4025/actascilangcult.v33i2.12515.