@ARTICLE{AbsGal2009, author = "P.-A. Absil and K. A. Gallivan", title = "Accelerated line-search and trust-region methods", journal = "SIAM J. Numer. Anal.", fjournal = "SIAM Journal on Numerical Analysis", volume = 47, number = 2, year = 2009, pages = "997--1018", }