title: Introduction to nonlinear methodology, Part I: Challenges we face and those that we offer.
authors.forename: Robert A M
authors.initials: RA
authors.lastname: Gregson
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Guastello
mesh_terms: D008962:Models, Theoretical; D017711:Nonlinear Dynamics; D012107:Research Design