Hybrid methods for nonlinear least squares. Fletcher, R. & Xu, C. IMA Journal of Numerical Analysis, 7:371–389, 1987. doi bibtex @Article{RF87,
author = {R. Fletcher and C. Xu},
title = {Hybrid methods for nonlinear least squares},
volume = {7},
pages = {371--389},
year = {1987},
doi = {10.1093/imanum/7.3.371},
journal = {IMA Journal of Numerical Analysis},
}