de las Heras Kerejeta, IkerZozaya Ursuegui, Andoni2024-12-052024-12-0545502https://doi.org/10.1387/ekaia.21864https://ojs.ehu.eus/index.php/ekaia/article/view/21864/20075https://gordailua.ueu.eus/handle/123456789/21554Matematikaarticle