@unpublished{upm21556,
            note = {Unpublished},
            year = {2013},
           month = {June},
           title = {Yate a vela 30 metros},
          author = {S{\'a}nchez Fern{\'a}ndez, Alejandro},
        abstract = {PFC Yate a vela 30 metros},
             url = {https://oa.upm.es/21556/}
}