PCA detection and denoising of Zeeman signatures in polarised stellar spectraM. J. Martínez González, A. Asensio Ramos, T. A. Carroll, M. Kopf, J. C. Ramírez Vélez and M. SemelA&A, 486 2 (2008) 637-646DOI: https://doi.org/10.1051/0004-6361:200809719
