@article{1950, title={TRAVIESAS DE HORMIGON PRETENSADO, PARA FERROCARRILES.}, volume={1}, url={http://hormigonyacero.com/index.php/ache/article/view/1826}, number={2}, journal={Hormigón y Acero}, author={, Kaylor, H.}, year={1950}, month={ene.} }