Kristoufek, LadislavFerreira, Paulo2021-12-212021-12-212018-11-18http://hdl.handle.net/10400.26/38357engCapital asset pricing model in Portugal: Evidence from fractal regressionsjournal article2021-11-13cv-prod-8678810.1007/s10258-018-0145-52-s2.0-85045622136