To cite the zoomgrid package or its underlying methodology, please use the following references: Yang Y (2019). _zoomgrid: Grid Search Algorithm with a Zoom_. doi:10.32614/CRAN.package.zoomgrid . R package version 1.1.0 (CRAN release 2026-02-28), . A BibTeX entry for LaTeX users is @Manual{, title = {zoomgrid: Grid Search Algorithm with a Zoom}, author = {Yukai Yang}, year = {2019}, note = {R package version 1.1.0 (CRAN release 2026-02-28)}, doi = {10.32614/CRAN.package.zoomgrid}, url = {https://CRAN.R-project.org/package=zoomgrid}, } Yang Y (2012). _Modelling Nonlinear Vector Economic Time Series_. Ph.D. thesis, Aarhus University, Aarhus, Denmark. PhD thesis, Department of Economics and Business, CREATES, . A BibTeX entry for LaTeX users is @PhdThesis{, title = {Modelling Nonlinear Vector Economic Time Series}, author = {Yukai Yang}, year = {2012}, school = {Aarhus University}, address = {Aarhus, Denmark}, note = {PhD thesis, Department of Economics and Business, CREATES}, url = {https://pure.au.dk/ws/files/428886102/Yukai_Yang_PhD_Thesis.pdf}, }