@article{Ostenfeld_2019, title={Evolución de los puentes colgantes}, volume={70}, url={http://www.hormigonyacero.com/index.php/ache/article/view/2074}, DOI={10.33586/hya.2019.2074}, number={289}, journal={Hormigón y Acero}, author={Ostenfeld, Klauss}, year={2019}, month={nov.}, pages={103-113} }