ANTONIO MARTÍN ALCÁNTARA2026-01-292026-01-29201510.1016/j.mechmachtheory.2015.06.0072-s2.0-84937119260https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/26239BioengineeringComputer Science ApplicationsMechanical EngineeringMechanics of MaterialsAnalytical approaches to oscillators with nonlinear springs in parallel and series connectionsresearch article